Republican David McCormick has won Pennsylvania’s pivotal U.S. Senate seat, beating three-term Democratic Sen. Bob Casey ...

McCormick declared victory in the Pennsylvania race but is seeking to challenge provisional ballots in the Democratic stronghold.

Republican David McCormick cut into Democratic Sen. Bob Casey’s support in Philadelphia and its populous suburbs and built ...

WASHINGTON (AP) — Republican David McCormick cut into Democratic Sen. Bob Casey's support in Philadelphia and its populous suburbs and built leads in the more GOP-leaning parts of the state ...

(AP Photo/Matt Rourke) Republican Pennsylvania Senate candidate David McCormick, left, arrives to speak with his wife, Dina Powell, during an election night watch party, Wednesday, Nov. 6 ...

(AP Photo/Matt Rourke) Republican Pennsylvania Senate candidate David McCormick, left, arrives to speak with his wife, Dina Powell, during an election night watch party, Wednesday, Nov. 6 ...

HARRISBURG, Pa. (WPVI) -- Republican Dave McCormick has declared victory over Democratic Senator Bob Casey in Pennsylvania's pivotal U.S. Senate seat. The Associated Press called the race for ...

David McCormick was one of two former Connecticut residents to face allegations of carpetbagging in other state's U.S. Senate ...

If you’re having trouble viewing results in this article, click here. Incumbent Bob Casey (D) and David McCormick (R) along with five other candidates are vying for Pennsylvania's U.S. Senate seat.

WASHINGTON — Pennsylvania's Senate contest between Democratic incumbent Bob Casey and Republican challenger David McCormick is still too close to call. On Thursday morning, McCormick has a ...

Republican Dave McCormick holds a slim lead over Democrat Sen. Bob Casey as final votes continue to be counted.CURRENT TOTAL | With 98% of the vote in, McCormick has 48.9% of the vote while Casey ...