It appears that Mueller really is done -- or, at least, he wants to be:
https://www.newser.com/story/275811/muellers-2-years-of-silence-are-about-to-end.htmlHe also made clear that "any testimony from [our] office would not go beyond our report. ... We chose those words carefully and the work speaks for itself," and that he would not provide information beyond what has already been made public in any appearance before Congress: "Beyond what I've said here today and what is contained in my written report, I do not believe it is appropriate for me to speak further."
Here's the take-away for me: We have a legal system that says a person is considered to be innocent until proven beyond a reasonable doubt to be guilty. Them's the rules. Mueller said:
He made clear that his office "concluded we would not reach a determination one way or the other about whether the president committed a crime,"
So, irrespective of whether or not Mueller's team had enough
proof of Trump's innocence to come out and say so unequivocally, the fact is they also didn't have enough
proof of guilt to say so. So, the way the system works, if a special prosecutor's team could not uncover enough evidence after two
years of digging to say with any degree of certainty that they thought Trump was guilty ... then by the rules of our system Trump is innocent.