Once they lose the election, they'll try to sue and stall to give time for the post office to 'find' lost votes. Trump has to win by tens of millions to stop that from happening. Once it's clear that Trump can't be stopped (and hopefully Congress is no longer controlled by Dems), their only recourse is to attempt to overthrow the government. How far does that have to go before they are declared traitors and hung? I'm pretty sure Trump doesn't want to hang people, but that might be the only way.