Republican Dave McCormick has been projected the winner of Pennsylvania's U.S. Senate race against long-standing Democratic incumbent Bob Casey, with a lead of about 30,000 votes. Despite the Associated Press calling the race, Casey has yet to concede, citing the need for all eligible votes, including provisional and mail ballots, to be counted. McCormick expressed gratitude for Casey's service and highlighted the need for change in leadership, particularly regarding economic issues and border security. Political analysts indicate that McCormick's victory represents a significant upset, as incumbents like Casey rarely lose, especially those from prominent political families. Should the margin remain within 0.5%, a recount may be triggered, as thousands of ballots are still pending. This election marks a pivotal moment for the Republican Party, potentially increasing its Senate majority to 53 seats.