There is NO WAY Mueller would fire him for that.
You can't make this stuff up.
But Mr. Strzok was reassigned this summer from Mr. Muellers investigation to the F.B.I.s human resources department, where he has been stationed since. The people briefed on the case said the transfer followed the discovery of text messages in which Mr. Strzok and a colleague reacted to news events, like presidential debates, in ways that could appear critical of Mr. Trump.