Pennsylvania Republican Senate candidate Dave McCormick speaks during a campaign event in Steelton, Pa., Thursday, Sept. 12, 2024. (AP Photo/Matt Rourke)

Sen. Bob Casey, D-Pa., speaks during a campaign event with union members in Philadelphia, Wednesday, Sept. 4, 2024. (AP Photo/Matt Rourke)

Andrés García, left, and Christina Smallwood, Border Patrol agents and Public Affairs officers, look for migrants underneath the vehicular McAllen-Hidalgo International Bridge in Hidalgo, Texas, early Friday, Aug. 9, 2024. (Verónica Gabriela Cárdenas/The Texas Tribune via AP)