In a surprising turn of events, Republican candidate David McCormick has declared victory in the Pennsylvania Senate race, unseating longtime Democratic incumbent Bob Casey after three terms. Despite his triumph, McCormick is challenging provisional ballots in Philadelphia, leading to ongoing legal battles. Casey has yet to concede, expressing confidence in the remaining ballots being counted, while the Associated Press has called the race in favor of McCormick. This election marks a significant shift in Pennsylvania politics, reflecting a wave of support for Republican candidates backed by former President Donald Trump.