"We came so close, by the slimmest of margins on election night with thousands of votes outstanding," McCormick said at the event on June 3 at 6:30 p.m.

"We spent the last 17 days making sure that every Republican vote was counted in a way that resulted in the will of Pennsylvania voters being fulfilled. That is what this process is about.

"I called Mehmet Oz to congratulate him on his victory," McCormick added.

"It is important that we beat John Fetterman and take back the majority in the Senate. He has my full support."

For weeks, polls showed that the race was too close to call. Results from primary election day demonstrated that the projection was accurate.

Though he slipped to third in some recent polls and saw former President Donald Trump endorse Oz in April, McCormick carried a slim lead for most of the night in the primary on May 17.