Pennsylvania incumbent Sen. Bob Casey (D) and Republican challenger Dave McCormick will take the debate stage Thursday evening in Harrisonburg, Pa., as Democrats try to prevent Republicans from flipping the Senate red.

The senator is in a tight race of his own. Could his strategy for winning over moderate Republicans also work for the Democratic presidential ticket?

Pennsylvania has been viewed by many as the most critical swing state in the 2024 presidential election, but it’s also home to a significant U.S. Senate race. Republicans have been working to take control of the chamber this November,