The recount, if completed, would have cost more than $1 million, according to Department of State estimates. It’s unclear how much the shortened effort cost.

Pa., on Thursday conceded the race for Pennsylvania's Senate seat to his Republican opponent, Dave McCormick. NBC News projected McCormick's win in the hotly contested battleground state race shortly after Casey's concession,

HARRISBURG, Pa. (AP) — 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 blows in court in its effort to get favorable ballots counted.