The massive tax cut, business, building & industrial deregulations, peeling back of enviromental standards going back decades, appointing people to agencies such as the EPA whose very mission they are opposed to in order to weaken them from within, nominating Kavanaugh for personal benefit, using threats of war and nukes on countries he's upset at... Bragging about all this, no less. Not some questionable moves quietly passed into law.
Just days ago he was blocked in court from allowing Yellowstone grizzlies from being hunted outside the park. He wants to open National Parks themselves to hunting, a gift to his sons, basically.
These are things that would be politically toxic for carreer politicians to support, let alone propose and in such quantity.