Until a friend pointed out to me a few things that made me wonder. First of all, between who? The left and the right? Obviously Trump would lead the right, but who would lead the left in some type of insurgence? And, how many people would be willing to fight? And essentially we would be going against the American military, because no doubt they would be deployed...

So, I thought about it more and don't see it as really plausible. But who knows...