IMO you misspoke here.
If Biden wins, Trump will call his protesters into the streets to ensure things are as inflamed as possible. To the degree there are elements in the Federal government willing to violate the law to help Trump we may have agents provocatuers on the Federal payroll as well. Perhaps thousands of such if the DEA or FBI has been turned.
Aside: It’s interesting to me how many of your flurry of OPs amount to sounding like a reasonable centrist worried that sliding slightly left would be far worse than turning hard right. Usually containing the word “concerned”.