Stav if the others you mention are crooked that doesn’t mean being crooked is ok. Trump is desperate to stay in power for another four years as the statute of limitation on some of his crimes would mean he wouldn’t stand trial for them.
The mueller trial found a list of misdemeanours but he bottled it and left any further action to Bill Barr who is in Trumps pocket.
There are a few investigations ongoing against trump some of which, at state level, he may be able to pardon himself, it’s never been done before but that won’t stop him trying.
At state level the President can’t pardon himself and this is likely where he will meet his Waterloo and jail is the likely outcome.