He was friend of George h Bush. Still?
He’s a friend of anyone that serves his immediate purpose - in other words, he’s a pragmatist - he’ll do what it takes to get the job done including making deals with the devil if necessary.
Any ideologue of whatever stripe will be deeply disappointed by him sooner or later. Discerning what his interests are and assessing how they mesh with yours is the only way to decide whether you should vote for him.