Trump will not have to worry about a Jumping Jim Jeffords or a Lincoln Chafee or an Arlan Spector. There are still some Republican Senators who might obstruct his agenda, but Trump still has a much better Senate than Bush had when he came into office.
I smell “gang of eight” warming up in the bullpen. I can see it now, McCain and Graham and their dimwit friends stopping everything until the Senate reverses the Reid rule change. These two are trouble for Trump. Just hide and watch.