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

Democratic incumbent Sen. Bob Casey Jr. faces a well-financed challenge from Republican Dave McCormick in Pennsylvania’s nationally-watched U.S. Senate race. While Casey held a lead for much of the campaign, the race tightened in the final days ...

All eyes are on Pennsylvania for a handful of reasons, as PA's U.S. Senate race also has the potential to flip the majority in the U.S. Senate.

Pennsylvania Sen. Bob Casey is vying for a fourth term against challenger and businessman Dave McCormick in an extremely close race that could ultimately play a role in the balance of power in the United States Senate.

Pennsylvania’s U.S. Senate race between three-term Democratic Sen. Bob Casey and Republican challenger David McCormick will help determine control of the chamber Tuesday in a battleground state contest that is one of the nation’s most expensive this year.

On 5, Pennsylvanians will have a chance to vote for who will represent them in the U.S. Senate for the next six years.

Pennsylvania’s U.S. Senate race between three-term Democratic Sen. Bob Casey and Republican David McCormick will help determine control of the chamber