Maybe he's figured out that if you keep turning left, you get to Venezuela.
He did make one revealing statement (that I think was genuine) about the DE primary results. That he had been waiting all his life for someone to come along and tear down the establishment, he just didn’t know it would come from the middle and right.
Maybe, just maybe, the DE primary (and the GOP establishment’s reaction to it) opened his eyes about the tea party movement. He definitly described it as being made up of people “from the middle and right.” A big change from his previous descriptions of the tea party.
Maybe he hates the establishment more than conservatives, and figures the enemy of my enemy is my friend.