Say what? Oh wait, I get it, because the maga definition of incompetent = didn't commit any crimes that's why he wasn't required to stand trial.
On the other hand your cult leader is VERY competent to stand trial. And so far, out of something like 70 jurists, not a single one has failed to either indict or convict him. That means he is pretty stinking incompetent as a criminal. Or a president. Or a father. Or a husband. Or an American. Or a human being.