This is what I fully expect. For one thing there's a tradition of respecting election results in America. It's only now that people are expressing a lack of confidence. I think it mostly has to do with Trump's actions and rhetoric. He has renounced acknowledging that he's willing to accept defeat, he keeps saying that the Democratic Party is rigging the election (with zero evidence, and everyone acknowledges that) and he keeps threatening to try to deny lawful post election day vote processing, also eggs people on to disrupt peaceful orderly voting processes.