I read an academic paper where a group of psychiatrists tried to diagnose Hitler. The picture was complex. I recall PTSD, schizophrenia, drug addiction (amphetamines), ASPD, and narcissism, but there's probably more I've forgotten. Trump is very dangerous, however, even if he's only a con, a cheat, a narcissist, a sexual predator, a bigot, and a misogynist.