That depends on whether they will follow the next page from the fascist book and declare some kind of emergency which they can then use as a pretext to declare martial law.
Trump has already tried to do that with the BLM protests, and has discussed invoking the Insurrection Act.
Martial law in the US is not unheard of; Wikipedia lists two recent:
https://en.wikipedia.org/wiki/Cambridge_riot_of_1963
https://en.wikipedia.org/wiki/Martial_law_in_the_United_States#Freedom_Riders_(1961)
So, the wait may be long, but events may be accelerated if conditions deteriorate.