Democratic Sen. Bob Casey of Pennsylvania conceded his reelection bid to Republican David McCormick on Thursday, as a statewide recount showed no signs of closing the gap and his campaign suffered repeated blows in court in its effort to get potentially favorable ballots counted.

Republican David McCormick defeated three-term Democratic Sen. Bob Casey in Pennsylvania, the Associated Press projected, underscoring the battleground state’s red shift this year while expanding the GOP’s Senate majority in the next Congress.