There's lots of hyperbole about fraud and corruption and yet not a single case that I can find has been initiated against a single person or organization to date, so I'd take all that with a grain of salt, at the moment. I've no doubt there's plenty of gravy train riding, which is, I expect the euphemism for "abuse", but that's been going on through every admin for decades - and should undoubtedly be stopped.
Trump's power, or the limits therein of executive power, will be decided by the courts over the next few years. Keeping in mind that this is about executive power, not Trump's power specifically, then the next admin inherits it and may not use it as you'd like, but thems the breaks. Personally, I like limits on power for all 3 branches and I like that they are meant to be coequal.
Republican's and individual accountability with exceptions is hilarious - sounds great until you realize that the line is anything "they" disagree with, not to mention opposition to victimhood and group identity - lmao - what do you think culture "war" politics is about ffs!