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

Republican Dave McCormick clings to a one-point lead over incumbent Democratic U.S. Sen. Bob Casey Jr. early Wednesday.

New Jersey Sen. Cory Booker traveled across the Delaware River to support his colleague, Pennsylvania Sen. Bob Casey, inside ...

Vulnerable Pennsylvania Democratic Sen. Bob Casey seems fine with voters casting ballots for third-party foes — so long as ...

Republican candidate for Senate David McCormick gains the endorsement of the firefighters' union in Philadelphia, the largest ...

Pennsylvania U.S. Sen. Bob Casey Jr., a Democrat, once again offered his support for unions during a visit to Johnstown on ...

Pennsylvania U.S. Sen. Bob Casey Jr., a Democrat, once again offered his support for unions during a visit to Johnstown on ...

Bresnan, on the union’s endorsement, said that McCormick "is unequivocally the right choice for senator at this pivotal ...

Sen. Bob Casey spent Saturday appealing to labor groups as union members went to work campaigning on behalf of him and Vice ...