Graham happens to be in a very comfortable position for a cabal member. As a "Trump supporter" he can always go back to his constituents and run on his "I supported Trump" shtick, while assuring the DS with a wink and a nod that he'll never do anything to allow the ball to make it past a certain point. He's exactly the sort they need…someone who publicly yells and then quietly does absolutely nothing.
I will still reserve final judgement but more and more it looks like he is DS trash, just like I always thought.