Looks like I slipped on the same banana peel.
Will he be fired? My gut feel is yes. What has to happen is trump has to make the internal calculation that consequences of firing him are smaller than the consequences of him continuing on.
One is the possibility of impeachment.
The other is the possibility of charges ranging from conspiracy, to money laundering, to RICO, to espionage/sedition/treason. Those could eventually strip him of his fortune and everything he holds dear (his own image), even if he somehow keeps his liberty.
Of course, those charges may come either way. So might impeachment.
And trump is not exactly the sharpest thinker on the planet. Nor is he the most stable personality. And he isn't really surrounded by anyone who can influence him.
I say muehler goes; or at the very least trump tries to fire him.