“[The Trump] administration has no authority to designate groups as domestic terrorist organizations, as is obvious from the failure to cite any statute or constitutional provision in support of the president’s action. There is none, and the purported designation has no legal effect.” https://www.brennancenter.org/our-work/research-reports/trumps-orders-targeting-antifascism-aim-criminalize-opposition

Highly recommend this entire Brennan Center report on the Trump regime’s effort to criminalize -and invite violence against- opposition to it.