I tend to agree that post election could be ugly, mainly as Trump has already put it out there he may not accept the results.
I may not accept it either, though little I could do about it. The question is would I or Trump or Biden for that matter have legitimate reasons to contest? I submit the rush to jamb mail in voting down everyone throats without proper procedures in place to insure the integrity of the polling will be enough for either side to call foul.