Pa. Sen. Bob Casey's campaign said votes remain to be counted, but GOP challenger Dave McCormick sounded jubilant.

Bob Casey remained in a fight for his political life Wednesday, narrowly trailing Republican challenger Dave McCormick in a ...

Casey has a mathematical, but no real logical path to victory, but there seems to be a desire to have all the votes counted.

Pennsylvania’s nationally watched U.S. Senate race between Democratic incumbent Bob Casey Jr. and Republican challenger Dave ...

In the race for Pennsylvania's U.S. Senate seat, challenger and Republican Dave McCormick is leading over Democrat incumbent ...

One of Pennsylvania’s two U.S. Senate seats is before voters Tuesday. Incumbent Democrat Bob Casey is vying for a fourth term ...

Republican Dave McCormick holds a narrow lead over Democrat Sen. Bob Casey in the U.S. Senate race in Pennsylvania, with ...

David McCormick at Donald Trump's Pittsburgh rally. (Charly Triballeau/AFP/Getty Images) Republican Senate candidate Dave ...

Democratic incumbent Sen. Bob Casey Jr. faces a well-financed challenge from Republican Dave McCormick in Pennsylvania’s ...

McCormick has framed the race as one of strength versus weakness. Casey has worked to make it a question of honesty.

Pennsylvania's U.S. Senate contest between Democratic incumbent Bob Casey and Republican challenger David McCormick is still ...