I think your version of coup's comes from living in Thailand.

If Trump doesn't leave on Jan. 20th, who makes him go? I've heard it would be the secret service or the FBI. How do they do that if Trump brings his own troops to the White House? Maybe Erik Prince will provide him with his own private army. Then what? You'd think the military would roll in then, but the military is made up of those low level soldiers that are Trump supporters. Then what?

I know it's all hypothetical and sounds crazy, but nothing would surprise me anymore, and I feel these are very possible scenarios.