Republican Dave McCormick showed three-term Democratic Sen. Bob Casey the door in the Keystone State's high-stakes Senate race, bringing a Pennsylvania political dynasty to an end " and securing the 53rd seat in the GOP's 2025 Senate majority. McCormick, an Army veteran and former hedge-fund executive, beat Casey by just over 30,000 votes, netting 49% of votes to the Democrat's 48.5%, with 99% of votes counted, the Associated Press reports. The minuscule margin could trigger an automatic recount, as Pennsylvania law dictates for any race decided by 0.5 percentage points or less. The Republican declared victory just after 1 p.m. Thursday, three hours hours before AP finally made the call, with McCormick campaign communications director Elizabeth Gregory tweeting: "Any way you slice it, David McCormick will be the next United States Senator from Pennsylvania."