Jeff Flake -- breaks with Trump, retires Bob Corker -- breaks with Trump, retires Will Hurd -- breaks with Trump, retires Richard Burr -- breaks with Trump, retires Pat Toomey -- breaks with Trump, retires Ben Sasse -- breaks with Trump, resigns Anthony Gonazalez -- breaks with Trump, retires Fred Upton -- breaks with Trump, retires John Katko -- breaks with Trump, retires Don Bacon -- breaks with Trump, retires MTG -- breaks with Trump, resigns