Democrats in Iowa vie to challenge GOP Sen. Chuck Grassley


              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              A voter leaves the Calvery Chapel after casting her ballot for the Iowa primary, Tuesday, June 7, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
            
              FILE - Senate Judiciary Committee ranking member Sen. Chuck Grassley, R-Iowa, speaks during a committee business meeting on Capitol Hill in Washington, March 28, 2022. (AP Photo/Susan Walsh, File)
            
              FILE - Retired Navy Admiral Mike Franken salutes before speaking at the Iowa Democratic Party's Liberty and Justice Celebration, on April 30, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall, File)
            
              FILE - Former Rep. Abby Finkenauer speaks during the Iowa Democratic Party's Liberty and Justice Celebration, April 30, 2022, in Des Moines, Iowa. (AP Photo/Charlie Neibergall, File)
Democrats in Iowa vie to challenge GOP Sen. Chuck Grassley