The Associated Press called the race for McCormick on Nov. 7, projecting that he would defeat Casey by less than 30,000 votes.

Pennsylvania Democratic Senator Bob Casey refuses to concede his race to Republican Dave McCormick, even though U.S. media outlets have called the race.

Aside from once-and-future President Donald Trump's unexpectedly decisive win, one of the most surprising results in Tuesday's election was Republican Dave McCormick's apparent victory over three-term U.