I don't think Trump is in a hurry to start the Second Civil War, which is what will happen when the prosecutions start in earnest ...
The second Civil War, I’ve often wondered what that might look like. Secession of states currently with a constitutionally oriented administration (Trump) the only state that might do it if provoked sufficiently is California. (Arrest of Brown, state & city officials for violating federal immigration law might be sufficient!) Now I could be wrong about this, but I don’t see the state legislatures of Washington, Oregon, Illinois & New York as sufficiently full of enough crazies to pass an article of secession. So I think it would be a short civil war, I don’t see California National Guard units lining up to support Brown & company. I do see Brown & company (Hollywood, etc.) resigning and trying to promote an insurgency that is centered in the big cities. I don’t think it would last long and it might not look any different then the LA (Rodney King) and/or Watts riots.
Likewise in the other states I could see a “insurgency” in the major cities. Again it might not look any different then the riots of 1968, etc. The question is ‘Will a Trump (or Pence) administration lose their nerve and not tamp it down immediately?”