Fellas, I know a few folks very much on the spectrum (which, as Jeff says, is very wide) as well as my own diagnosis. I believe Trump is mentally ill but not an Aspie, perhaps some narcissistic disorder, or something else along those lines. He may also be showing signs of dementia. As the late great Carlin put it: "The cheese fell off his cracker a while ago".

"The liberals can understand everything but people who don't understand them."
Lenny Bruce

"The cleverest of all, in my opinion, is the man who calls himself a fool at least once a month."
Dostoevsky