Big campaign question for Democrats: Focus on Jan. 6 or not?

FILE - Violent insurrectionists loyal to President Donald Trump stand outside the U.S. Capitol in Washington on Jan. 6, 2021. The public hearings of the House committee investigating the insurrection pose a challenge to Democrats seeking to maintain narrow control of Congress. (AP Photo/Jose Luis Magana, File)

Big campaign question for Democrats: Focus on Jan. 6 or not?