The way judges who were chosen by him are themselves sitting on the Supreme Court going no man, that's fucking illegal, you can't to that is a top shelf demonstration of the ongoing, rapid degradation of the Republican party. They were EXTREME choices a few years ago and now they seem comparatively rational.
The Dems are not without their flaws, buffoonery, and warts, but every few years the biggest pain in the ass leaves the GOP and complains about how irrational his party has become, and then a few years later another pain in the ass leaves and says how far his party has fallen, and they have not, in my lifetime at least, ever swung back toward a more rational mindset. John Boehner is the first one who comes to mind as someone who was an obstructionist pain in the ass who held the door open for more extreme versions of his party, then bailed and complained about it. We thought they couldn't get more illiterate than GWB but they did. We had Cheney advocating folks vote against Trump. Paul Ryan to Kevin McCarthy and so on... every new guy is just a little freer with the kerosene than the last one. The Tea Party held the door open for Maga and then fucked off. Every single party member held the door open to someone worse and then left when they didn't like the company anymore until the clowns were driving the car. Ad Damien pointed out, at least the old GOP pretended to believe that the rule of law mattered, but every single election they descend deeper into zero fucks given about a functional government.
The Democrats are a divided mess but I think can be salvageable as an organization. The GOP long ago drove the last rational man from the island. (For example, not once in this administration has anyone said "so and so is the adult in the room" the way people thought John Kelly or Rex Tillerson or Mad Dog Mattis would be the adult in the room. If there is an adult, they walk in, see the governmental equivalent of Lord of the Flies, and walk back out again refusing to do anything about it.