Do it. There’s decades of evidence to back it up, it’s their reason for existence.
Via NY Post:
President Trump threatened to designate left-wing activist group Antifa as a terrorist organization in a Saturday tweet just hours before the start of opposing demonstrations in Portland, Oregon.
“Major consideration is being given to naming ANTIFA an ‘ORGANIZATION OF TERROR,’” Trump posted. “Portland is being watched very closely. Hopefully the Mayor will be able to properly do his job!”