Sorry to disappoint but this is not accurate. I take it you're referring to Ødungo. Even if you could prove that he was extraterrestrial, once he was confirmed as president it was a done-deal and his actions cannot be magically undone as you imply. There isn't a specific legal remedy to do what you suggest, and (as important) there isn't the political will.
The lesson here is the same as for the dhimmis - sometimes you get dealt a shyt hand. When you do you have to play it out - or walk away. We survived Ødungo and the left will survive Trump.
Precisely
Too bad.