Oz, McCormick still neck and neck in Pa. GOP Senate primary

May 17, 2022, 5:48 PM | Updated: May 19, 2022, 7:59 am

Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballot...

Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)

(AP Photo/Keith Srakocic)


              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mercer County Director of Elections, Thad Hall uses the optical scanner to continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, in Mercer, Pa.. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Election workers continue the process of counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              A bundle of mail-in ballots marked "Problem Return, (Outer) Envelopes" are set aside as election workers continue counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              An election worker continues the process in counting ballots for the Pennsylvania primary election, Wednesday, May 18, 2022, at the Mercer County Elections Board in Mercer, Pa. Vote counting continues as Republican candidates Dr. Mehmet Oz and David McCormick are locked in a too-early-to-call race for Pennsylvania's hotly contested Republican nomination for an open U.S. Senate seat. (AP Photo/Keith Srakocic)
            
              Mehmet Oz, a Republican candidate for U.S. Senate in Pennsylvania, speaks to supporters at a primary night election gathering in Newtown, Pa., Tuesday, May 17, 2022. (AP Photo/Seth Wenig)
            
              Republican candidate for a Pennsylvania U.S. Senate seat, Dave McCormick, right, and his wife Dinah Powell, talk to supporters during his returns watch party in the Pennsylvania primary election, Tuesday, May 17, 2022, in Pittsburgh. (AP Photo/Keith Srakocic)
            
              Republican candidate for a Pennsylvania U.S. Senate seat, Dave McCormick, right, and his wife Dinah Powell, talk to supporters as returns show a close race during his returns watch party in the Pennsylvania primary election, Tuesday, May 17, 2022, in Pittsburgh. (AP Photo/Keith Srakocic)
            
              Mehmet Oz, a Republican candidate for U.S. Senate in Pennsylvania, speaks to supporters at a primary night election gathering in Newtown, Pa., Tuesday, May 17, 2022. (AP Photo/Seth Wenig)
            
              Mehmet Oz, a Republican candidate for U.S. Senate in Pennsylvania, speaks to supporters at a primary night election gathering in Newtown, Pa., Tuesday, May 17, 2022. (AP Photo/Seth Wenig)

HARRISBURG, Pa. (AP) — Heart surgeon-turned-TV celebrity Dr. Mehmet Oz and former hedge fund CEO David McCormick spent Wednesday essentially tied in Pennsylvania’s hotly contested race for the Republican nomination to fill an open U.S. Senate seat. It’s also expected to be among the party’s most competitive races with the Democrats in the fall.

The GOP nomination battle was still too early to call.

Oz led McCormick by 1,723 votes Wednesday, out of more than 1.3 million votes counted. There were tens of thousands of votes left to be counted, including at least 22,000 mail ballots and an unknown number of votes cast on election day.

Statewide, McCormick was doing better than Oz among mail ballots, while Oz was doing better among votes cast on election day. Counties also must still count provisional, overseas and military absentee ballots before they certify their results to the state by next Tuesday’s deadline.

The race was close enough to trigger Pennsylvania’s automatic recount law, with the separation between the candidates inside the law’s 0.5% margin.

Oz and McCormick emerged at their election night watch parties after midnight to say they would have to wait for vote-counting to resume, with each saying he was confident of victory. Former President Donald Trump encouraged Oz to preemptively declare victory. but Oz has made no indication of doing so.

Both candidates appeared on Fox News late Wednesday expressing confidence that they would win.

“I’m excited about where we are,” McCormick told host Laura Ingraham.

Oz told Sean Hannity that “the election is ours, we have done well.”

The state’s lieutenant governor, John Fetterman, won the Democratic nomination hours after undergoing surgery to implant a pacemaker with a defibrillator to help him recover from a stroke he suffered on Friday.

Democrats view the race to replace retiring two-term Republican Sen. Pat Toomey as perhaps their best opportunity to pick up a seat in the closely divided 100-seat Senate.

Republican turnout exceeded 37%, the highest midterm primary turnout in at least two decades, boosted by more than $70 million in advertising and other spending.

Oz has been helped by an endorsement from Trump, while a super PAC backing McCormick weighed in heavily in the race, spending about $20 million, much of it to attack Oz.

Both men spent millions of their own dollars on the campaign, as well, and battled accusations of being carpetbaggers — Oz moved from a mansion in New Jersey overlooking Manhattan to run, and McCormick moved from Connecticut’s ritzy Gold Coast.

Oz, best known as the host of daytime TV’s “The Dr. Oz Show,” has battled misgivings among conservative groups about his positions on guns, abortion and other core conservative issues. He countered that Trump’s endorsement guaranteed that he was a conservative.

Oz also was attacked repeatedly for his dual citizenship in Turkey, and he accused McCormick of making “bigoted attacks.” If elected, Oz would be the nation’s first Muslim senator, although he has not campaigned on that milestone. He was born in the U.S. and has said he would renounce his dual citizenship in Turkey if he is elected.

McCormick is a U.S. Army combat veteran who has strong connections to the party establishment going back to his service in President George W. Bush’s administration.

However, McCormick spent much of the campaign fending off accusations from rivals that he would be soft on China after leaving a hedge fund, Bridgewater Associates, which does considerable business inside China with the blessing of the government there.

Trump attacked McCormick repeatedly in the final two weeks of the race, calling him a liberal, a sellout to China and part of a corrosive Washington establishment that is not “America First,” Trump’s label for his governing philosophy.

Nevertheless, McCormick insisted he was the most “America First” candidate in the race and closed it by airing a TV ad showing a video clip of Trump in a private 2020 ceremony congratulating McCormick, saying “you’ve served our country well in so many different ways.”

Oz and McCormick both avoided repeating Trump’s false claims that Democrats stole the 2020 presidential election from him in the battleground state. They defaulted to repeating Republican complaints about decisions by state judges and election officials in how to administer the election.

___

Follow AP for full coverage of the midterms at https://apnews.com/hub/2022-midterm-elections and on Twitter at https://twitter.com/ap_politics.

___

Follow Marc Levy on Twitter at https://twitter.com/timelywriter.

Copyright © The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

AP

OpenAI's CEO Sam Altman, the founder of ChatGPT and creator of OpenAI gestures while speaking at Un...

Associated Press

ChatGPT maker downplays fears they could leave Europe over AI rules

OpenAI CEO Sam Altman on Friday downplayed worries that the ChatGPT maker could exit the European Union

1 day ago

File - Alphabet CEO Sundar Pichai, left, and OpenAI CEO Sam Altman arrive to the White House for a ...

Associated Press

Regulators take aim at AI to protect consumers and workers

As concerns grow over increasingly powerful artificial intelligence systems like ChatGPT, the nation’s financial watchdog says it’s working to ensure that companies follow the law when they’re using AI.

3 days ago

FILE - A security surveillance camera is seen near the Microsoft office building in Beijing, July 2...

Associated Press

Microsoft: State-sponsored Chinese hackers could be laying groundwork for disruption

State-backed Chinese hackers have been targeting U.S. critical infrastructure and could be laying the technical groundwork for the potential disruption of critical communications between the U.S. and Asia during future crises, Microsoft said Wednesday.

4 days ago

FILE - President Joe Biden speaks in the East Room of the White House, May 17, 2023, in Washington....

Associated Press

White House unveils new efforts to guide federal research of AI

The White House on Tuesday announced new efforts to guide federally backed research on artificial intelligence

5 days ago

FILE - The Capitol stands in Washington D.C. (AP Photo/J. Scott Applewhite, File)Credit: ASSOCIATED...

Associated Press

What it would mean for the economy if the US defaults on its debt

If the debt crisis roiling Washington were eventually to send the United States crashing into recession, America’s economy would hardly sink alone.

6 days ago

FILE - Bryan Kohberger, left, looks toward his attorney, public defender Anne Taylor, right, during...

Associated Press

Judge enters not guilty pleas for suspect in stabbing deaths of 4 University of Idaho students

A judge entered not guilty pleas Monday for a man charged in the stabbing deaths of four University of Idaho students, setting the stage for a trial in which he could potentially face the death penalty.

7 days ago

Sponsored Articles

Internet Washington...

Major Internet Upgrade and Expansion Planned This Year in Washington State

Comcast is investing $280 million this year to offer multi-gigabit Internet speeds to more than four million locations.

Compassion International...

Brock Huard and Friends Rally Around The Fight for First Campaign

Professional athletes are teaming up to prevent infant mortality and empower women at risk in communities facing severe poverty.

Emergency Preparedness...

Prepare for the next disaster at the Emergency Preparedness Conference

Being prepared before the next emergency arrives is key to preserving businesses and organizations of many kinds.

SHIBA volunteer...

Volunteer to help people understand their Medicare options!

If you’re retired or getting ready to retire and looking for new ways to stay active, becoming a SHIBA volunteer could be for you!

safety from crime...

As crime increases, our safety measures must too

It's easy to be accused of fearmongering regarding crime, but Seattle residents might have good reason to be concerned for their safety.

Comcast Ready for Business Fund...

Ilona Lohrey | President and CEO, GSBA

GSBA is closing the disparity gap with Ready for Business Fund

GSBA, Comcast, and other partners are working to address disparities in access to financial resources with the Ready for Business fund.

Oz, McCormick still neck and neck in Pa. GOP Senate primary