But Trump doesn't understand nuances like following the law. He just thinks he can pick up the phone and people on the other line will do what he says.
He doesn't even want to put in the effort to
try to understand them. He either thinks it's beneath him or that he shouldn't have to worry about them because he's President.
But that's the freaking
job. Being President is being in the biggest of the big leagues, and you have to put in a lot of work and effort to do the job properly. If you don't have a political or legal background, that just means you have to work and study harder to do the job the right way. "I'm not a politician or lawyer" is a decent excuse for the first six months.
Maybe a year. After that, you've had more than enough time to get the basics down, and not make rookie mistakes. Trump spent more than enough time on golf courses in his first year to have taken an entire law school course on Constitutional law.
If you get a new job and there's stuff you don't know, it is
your job to learn it. When I got to my first artillery battery, I was trained as an artillery officer, but received absolutely no training for all the collateral duties I got, which includes being battery motor transport officer. So I cracked open the manuals on the jeep, M939 series five ton truck, and the various trailers, studied them at night, and had my motor transport ops chief repeatedly walk me through the proper inspection procedures for both vehicles. We were a nuclear capable battery, so I also was assigned as Nuclear Safety Officer, which meant a whole other series of books and orders I had to learn - again, on my "own time" - to make sure that all our paperwork was in order, training records done, etc..
It seems to me like Trump put in absolutely no effort at all - literally none - to learn the key things about the government that he didn't know. He just relied on whatever people would tell him in briefings, and then shot from the hip on issues. It is extraordinarily easy to be misled by people if you don't put in the work necessary to acquire knowledge independently of those people.