to prove to the world that he has support

I think Trump is desperately asking his dumb "base" to revolt and stop Mueller from throwing him and his family in jail. He believes all the idiots who go to his rallies will save him from the consequences of his actions. As a rich white kid he always got away with stuff and he's used to it. So maybe he's subconsciously asking his Daddy to get him out of trouble again. In this case his "Daddy" is right wing media and the neo Nazis and other groups who blindly follow him no matter what heinous acts he commits.

I wonder what he'll be like when he's really desperate?

He needs Cher to be his Chief of Staff.