We actually elected a narcissist and compulsive liar to lead us; someone who, as you say, likes to fuck with people. But it's not to see which side of the fence they're on. It's purpose is to humiliate enemies and ingratiate himself to those he sees as supporters. He'll treat quite differently those whom he thinks might stand in his way, like the middle aged, white, male voters he courted as though he had a vacuum cleaner to sell them. These folks, his marks, the pigeons, he sounds out so he can parrot back to them what they want to hear. Now that he has spent more time in the national spotlight, however, his sales pitch is beginning to become too transparent; a little too obvious. He'll lose effectiveness, and more rapidly than might be apparent. He is beginning to sound too much like the twenty something year-old who tries to sell whole life insurance by reading from a script his mentors gave him. He'll get tiresome very, very quickly. He is a pathetic man, caught beyond his depth, with neither understanding nor substance.
He'll retain his core followers, until the butt fucking they are about to receive at the hands of the Republicans becomes so painful they can no longer ignore it. The ones who pull the strings from behind the curtain, however, will be less and less amused with the passage of time.