PITTSBURGH — Republican Pat Toomey prevailed over Democratic challenger Katie McGinty and the odds in the most expensive Senate race in history Tuesday night after a hard fought battle to hold his U.S. senate seat.

The highly competitive race, which remained within the margin of error in the polls in the closing weeks of the race, went long into the night until the numbers in Philadelphia came in, the win kept the Lehigh Valley Republican in the Senate and the Republicans in the majority.