Where do Democrats vying for U.S. Senate in Pa. compare on key issues?

Democrats running for U.S. Senate in Pennsylvania remain united in efforts to maintain control in Congress. But the race has seen a tone shift in recent weeks — with the three leading candidates attacking each other as they compete for the party nomination ahead of the May 17 primary election.

When Lt. Gov. John Fetterman skipped a debate earlier this month, U.S. Rep. Conor Lamb and state Rep. Malcolm Kenyatta accused him of avoiding questions about his record and past actions. Their accusations focused on a 2013 incident where Fetterman...