What would move his base to support impeachment proceedings? After listening to some Trump supporters yesterday, I would say they would follow him all the way to hell.
Crackheads (and I am a former one) will follow crack rocks all the way to Hell. Trumpism is a DRUG.
The only people pushing the Athenian Straw Man Nonexistent Threat of Slippery Slope Windyfoggery (ASMNSSW) RE DEMOCRACY are people who have a misunderstanding/problem or hatred of democracy. (See AUTHORITARIANS)