I would definitely guess Saxby Chambliss. And possibly Johnny Isakson from Georgia, considering the fact that both were initially “for” Bush’s amnesty before they were against it, and the fact that Chambliss is retiring at the end of this term.
Isakson’s office swears he’s against it...but they lied to me during Shamnesty I.
It is the Rep portion of the Gang of 8: Rubio, McCain, Flake, and Graham. These are Schumer-owned Reps.