From Ted McLaughlin at jobsanger:
Donald Trump has thrown a giant temper tantrum, both in appearances with the press and on twitter, after learning that his attorney had been served a search warrant and had documents in his possession seized (presumably that involved his connections with Trump). Part of his tantrum has been that he thinks the investigation being done by Robert Mueller is unfair, and nothing more than a “witch hunt”.
This has revived the possibility that Trump may try to fire Robert Mueller. We know he wanted to do that last December, and was talked out of it by cooler heads in the White House. But many of those “cooler heads” (both among White House advisors and his attorneys) are now gone — fired by Trump in an effort to get rid of people who did not agree with him. There may not be enough people left right now with enough sway over Trump to keep him from firing Mueller.
But if he did that, he would be getting himself in deep trouble. Many in Congress would see that as a bridge too far. Even more important is the opinion of the general public.