Trump is to stupid to mastermind a real coup (at least on his own) BUT! .... if you were to have another populist in a few years who knows a little something about how power works on the back end, then we might have a real problem. This is the real legacy of the Trump administration -- as a test run for a real, effective populist authoritarian ruler in the future. With no shame, morals or integrity. Trump pushed a lot of boundaries, and bent and/or broke some, but didn’t really know what to do after that.
Trump is like a dumbass but brazen bank robber who decides to blow up the side of a bank. Then he has access to piles of money but didn’t plan transportation to haul it away, so he ends up just stuffing a few $100 bills in his pockets and runs away. The next bank robber will bring explosives AND a cargo truck.
E.g. Another Trump, but more self-disciplined; Another Trump, but more on-message; Another Trump, but more knowledgeable about politics; etc. But I also wonder about which elements of Trump you can strip away and still be as effective as he has been. His supporters see his impetuousness, his over-the-top showmanship, his lack of loyalty to anyone but himself as a selling point. It’s likely that the “next Trump,” like Trump himself, will come from outside politics entirely and likely from the entertainment industry. Tucker Carlson? Maybe. Probably someone we’re not even thinking about right now.