President Donald Trump endorsed former Navy SEAL Ed Gallrein in the Republican primary for Kentucky's 4th Congressional District, where Gallrein challenges incumbent Rep. Thomas Massie. Trump described Massie as the worst congressman in U.S. history and a disloyal fool, while Massie stated he intends to win the race. The primary election took place on or after May 18, 2026, following a campaign event in Hebron, Kentucky.