Live by the tweet, incriminate yourself by the tweet. Is he that dense he doesn’t think all these brain farts aren’t going to be used against him?
It depends. He can (effectively) fire Mueller any time he wants, the Senate and House leadership would do anything to avoid criticizing him, it’s pretty reasonable to think Putin’s got his back in future elections*, and he’s only two justices away from a completely neutered rubber-stamp Supreme Court. Certainly dense is one explanation for his behavior. Impunity is another – maybe he has no reason to feel so confident, but maybe he does.
Mobutu Sese Seko did several illegal things right out in the open for everyone to see, and I don’t believe he cared one bit if they would ever be used against him. In fact, doing them right out in the open was a signal to the public that he could truly do whatever he wanted without repercussions.
* TBH I think this is the weak link in the logic. I think Putin gets a lot more from extended chaos in the US than from owning any particular leaders. Putin wins whether Trump stands or falls, and popcorn costs a lot less than propaganda.