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

The former hedge-fund manager’s victory over Democratic incumbent Bob Casey brings the GOP total to 53 seats.

WASHINGTON (AP) — Republican David McCormick cut into Democratic Sen. Bob Casey's support in Philadelphia and its populous ...

David McCormick filed a lawsuit challenging at least 15,000 provisional ballots in Philadelphia in the Pennsylvania Senate ...

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

Senator Chuck Schumer has yet to invite Senator-elect McCormick to orientation this week, stating he'll wait for final vote ...

Pennsylvania Sen. Bob Casey accused Republican challenger Dave McCormick of trying to "disenfranchise" voters through ...

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

Forecasters believed both candidates had roughly equal chances of winning. The Cook Political Report classified Pennsylvania's Senate race as a toss-up, a decision made in the weeks before Election ...

(AP) — Republican David McCormick has won Pennsylvania’s pivotal ... domestic turmoil and war. The battleground state contest pads Republicans’ majority in the Senate, which they wrested ...