Well certainly try, and he’ll almost certainly use a due process argument against it. And the whole thing will end up laying on who (according to the court) gets to decide if he is an insurrectionist and under what standards they have to do so. Given the current courts, I’d put odds on either criminal court or Congress being the “who” they pick.

This is different than the CSA in that we don’t have a formal organization in open rebellion with officials publicly at its head.