Well, Trump hasn't managed to accomplish much politically! Certainly not as much as Dubya. There was a stolen Supreme Court seat, but the theft preceded him. There have been lots of terrible executive orders and undoing Obama-era regulations, but that's pretty typical in a party shift Presidency, and, for that very reason, can be as easily undone by the next Democratic President.
The worst and longest-lasting Trump accomplishments are his judicial appointments. As I've written before, "For me, it's the courts, stupid!" Update, one day later: In today's New York Times, I find this piece: Trump's Most Troubling Legacy? His Judges