Crimethinc has a very nice analysis of unrest that is likely to occur in the US after the 2020 election, and you should check it out.
Every possible outcome of the struggle over the 2020 election involves considerable risks. No matter how it occurs, a Trump victory would further polarize the country, radicalizing many liberals and leftists, but it would also likely lead to a tremendous amount of bloodshed and repression. If Biden wins the election in a landslide without significant resistance from Trump’s supporters, he will surely crack down on radicals and introduce policies that are oppressive to poor, Black, brown, indigenous, and undocumented people in order to placate the right-wing forces with whom he hopes to re-establish a truce. If Biden ends up in office thanks chiefly to the efforts of social movements in the street, it could discourage him from immediately cracking down on them, but this path involves passing through a very dangerous period of open conflict in which victory is by no means guaranteed.