He's pretty good when it comes to political theater, really good in fact. He's a natural when it comes to the political "dark arts", like playing to the crowd/mob, exploiting grievance and/or revanchist sentiment, and constructing suitable propaganda. One thing that someone pointed out recently to me, that I had never noticed before, is that Trump never says "um" or "uh" or anything like that when he speaks (in contrast to, say, Obama)...whenever he needs time to think while speaking (as people inevitably do), he'll simply repeat himself. Also, it's well-known that if you read a transcript of a Trump speech, more often than not it'll come across as only barely-comprehensible nonsense, if that. It's the manner in which he delivers the nonsense, the body language etc which makes it very compelling and impressive imo. He just absolutely nails the performative aspect of public speaking like no American politician I've seen during my lifetime...the only one who comes close is probably Obama but he was more traditional, while Trump's style is more innovative. I've always been fascinated by "Trumpism" as a linguistic phenomena tbh