Trump remained in office because he had a corrupt AG in William Barr who interpreted the Mueller Report in a way that was deferential to the old grifter and suppressed the more incriminating aspects of it in his summary and, more importantly, the Republican controlled senate had no interest in convicting him and thereby alienating his base and hurting their own reelection chances thus endangering their continuing control of the chamber. They wouldn't even let Bolton testify. The prospect of presidential pardons also kept some of the criminals involved silent.

When asked why there are so many crooks in congress Abe Lincoln responded that you can't dip clear water from a muddy stream.
Mortals are easily corrupted by wealth and power but a lot of the politicians you never hear about are honest, hard-working and have the interests of their constituents and the country in mind. I've done volunteer work for a few.

POST-election fund raising has been a real cash cow for twitler, from Nov. 3 until early December he's raised over 200 million, most of which he can legally use for future political aspirations but I have a feeling a lot of it will go to servicing the massive debts he has coming due in the next couple of years.