Pennsylvania's US Senate race between incumbent Democrat Bob Casey and Republican challenger Dave McCormick is going to an ...

The Pennsylvania Senate race between incumbent Bob Casey, left, and his Republican challenger, Dave McCormick, is headed for ...

Pennsylvania officials announced Wednesday that the tight margin in the Senate race between Sen. Bob Casey, D-Pennsylvania ...

HARRISBURG, Pa. (AP) — The U.S. Senate election in Pennsylvania between Democratic incumbent Sen. Bob Casey and Republican ...

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