How could Trump be stopped?

Alright, so, I've been grinding about this and missing sleep. I've seen the statistics, and I understand what they mean, and there are some other minor channels for me that lead me to believe that the election was rigged, and I mean very rigged by not only one but several enemy bodies, foreign and domestic.

Great, so, there's an ongoing investigation. The extent of the investigation, I'm not privy, but there is one. That's good, but here's the problem:

The courts are stacked, the Congress is stacked and there are many fervent supporters of the party in question, regardless of the integrity of the election. Yes, it's hypocritical for some of those people, but, with present proposals coming from the Trump administration, off of the back of everything they've already done... Well, needless to say, I'm fucking concerned, and hypocrisy from some uneducated/evil people is not the primary source.

What is a path, any path, if overwhelming evidence of fraud is found? This is unprecedented. If it comes down to the Supreme Court putting in a word regarding treason laws, or even the wrong federal court, I'm concerned about that. Of fucking course I am. I was concerned when Obama was refused appointments due to nothing other than the color of his skin, frankly. People can be awful.

So, how?

For some ungodly reason, the U.S. isn't member of the ICC, so there's no international court that could take this case. The ICC doesn't generally get involved in things like this anyway, but this whole situation clearly rhymes with another event in history that the ICC was *very* involved in, that the ICC was founded for, but the U.S. isn't a member. So there's nothing that can be done that way.

So, what? The investigation results in evidence of fraud, and then...?