It's nowhere near the worst or most consequential thing he's done, but I think Trump's threat to demolish the Kennedy Center if he isn't allowed to name it after himself is the clearest demonstration yet that he's gone mad with the imagined power of his office.
It doesn't advance any policy goal, and no constituency has been calling for it. He doesn't even particularly benefit from it. It's just a pure, simple expression of a corrupt ego out of control.
@mattblaze Mad before. Before version 1 I think.