Republican David McCormick has won Pennsylvania’s pivotal U.S. Senate seat, as the former CEO of the world’s largest hedge fund beat three-term Democratic Sen. Bob Casey in Tuesday’s election after accusing the incumbent of supporting policies that led to inflation,

McCormick’s projected victory marks a pivotal moment for the Republican Party, solidifying their gains in what was one of the nation’s most expensive Senate races and giving them a significant foothold in Pennsylvania, a state that has long been a key battleground in national elections.

Republican Dave McCormick appeared to win a major upset victory in Pennsylvania, beating three-term incumbent Bob Casey, which would give the GOP a key win in the U.S. Senate, where it now holds 53 seats.

Democrat Pennsylvania Rep. Matt Cartwright faced Republican challenger, local businessman, Rob Bresnahan in the race for the state's 8th Congressional District seat.