Lindsey Graham will say whatever his sponsors want him to say. He shares like 2 of his opinions a year, and you can tell which ones they are because a week after saying it he's already backtracking acting like he never said otherwise. He'll dance any dance to suppress video of him and his prostitutes dick in his mouth. It's a corner he's painted himself in by courting the homegrown hate vote.
My gut tells me that he's a decent guy and I bet he's quite capable at the state level, but he's been in over his head in DC ever since he got there.