Democratic U.S. Sen. Bob Casey of Pennsylvania and Republican challenger David McCormick have held the first debate in their race for a swing-state seat.

I'm the underdog,” David McCormick told NewsNation’s Leland Vittert in a one-on-one interview for “On Balance.”

Pennsylvania Sen. Bob Casey (D) is up 4 points in his Senate reelection bid over Republican rival David McCormick, according to a new survey. The AARP poll found the incumbent Democrat garnering

With about one month before the election, incumbent Democratic Sen. Bob Casey faces GOP businessman Dave McCormick Thursday in their first debate.

Democratic U.S. Sen. Bob Casey of Pennsylvania and Republican challenger David McCormick met Thursday for their first debate in the pivotal race for a swing-state seat, with each candidate repeatedly accusing the other of lying and turning questions about energy,

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.