President Donald Trump on Monday signed an order designating a decentralized movement known as antifa as a domestic terrorist organization, though whether he can actually do that remained unclear. Trump blames antifa for political violence. Can Trump designate it as a domestic terrorist organization? Antifa is a domestic entity and, as such, is not a candidate for inclusion on the State Department’s list of foreign terror organizations. The executive order did not specify how Trump he would go about designating antifa as a domestic terrorist organization.