Given his body language when he got elected, he should have admitted that he was pranking the US electoral system and gone and shot himself in the head. The world would have been a much, MUCH better place if this had happened. The fact that he had to ask, "So, what does the president do?" is a pretty good clue for his lack of qualifications for that office. But his incredibly obese ego wouldn't allow that. Subsequent behavior drives that home like a 2 pound hammer on a 6 penny nail. Never qualified for the office, and proving it every day. Going after some aspy kid (Greta Thunburg) on twitter? Fuxxake. I worked in aerospace for many years; one of the companies I worked for used the term "Uniquely Qualified". A bit of a stretch, though we did some pretty cool things. For the chump® I'd use the term "Uniquely UNqualified".
If you get to thinking you’re a person of some influence, try ordering somebody else’s dog around.