Republican Senate candidate Dave McCormick stepped up his legal efforts to block the counting of undated mail ballots Friday, ...

But the extent of the party’s power in the U.S. Senate remains unclear owing to the outstanding race in Pennsylvania.

The tight margin in the Senate race between Sen. Bob Casey, D-Pennsylvania and Republican Sen.-elect Dave McCormick has ...

The incredibly tight Pennsylvania race between Democratic Sen. Bob Casey and Republican challenger Dave McCormick will head ...

Pennsylvania will recount the race between incumbent Democratic Sen. Bob Casey and Republican David McCormick, who leads by ...

Casey has refused to concede despite multiple outlets calling the race for David McCormick, with the recount due to be ...

Republican Dave McCormick leads Democratic Sen. Bob Casey by about 28,000 votes, under the 0.5-percentage-point threshold for ...

The Pennsylvania Senate race is heading for a recount as Republican Dave McCormick continues to lead Sen. Bob Casey (R-Pa.) ...

The unofficial results in the race for the U.S. Senate seat in Pennsylvania have triggered a legally required statewide ...

Sen. Bob Casey is locked in a tight race with Dave McCormick in Pennsylvania. There will be an automatic recount of the votes ...

Pennsylvania Secretary of the Commonwealth Al Schmidt said Wednesday that the unofficial vote count for the U.S. Senate race ...

An automatic recount has been triggered in the U.S. Senate race in Pennsylvania between Bob Casey and Dave McCormick. Here's ...