I wonder if this spiraling in is a strategy?
As more and more of FFvC's inner circle is removed from the chessboard, Himself gets less and less stable. Cornered and paranoid. He's lashing out just to show that he's still in charge, and everyone who's saying 'Sir, you can't say that on national television' is wrong.
I wonder if Mueller is isolating Trump, knowing that Trump will likely alienate EVERYONE, until when Mueller actually offers up the results of his investigation, the GOP not only won't sweep it under the rug, but will actively seize it as FINALLY their chance, and excuse, to axe the growing threat?