Former Clinton Secretary of Labor and Berkeley professor of public policy Robert Reich tells CNN he has heard rumors that "right-wingers" instigated violence at the university on Wednesday night. "Those people were not Berkeley students. They were outsiders, agitators, I've never seen them before," he said. "There's rumors that they were right wingers. "They were a part of a kind of group that was organized and ready to create the kind of tumult and danger you saw that forced the police to cancel the event. So Donald Trump, when he says Berkeley doesn’t respect free speech rights, that’s a complete distortion of the truth." "Do you think it’s a strategy by [Milo] Yiannopoulos or right-wingers?" the host asked Reich. "I wouldn’t bet against it," he replied. "I saw these people. They all looked almost paramilitary. They were not from the campus." He added: "I don’t want to say factually, but I’ve heard there was some relationship here between these people and the right-wing movement that is affiliated with Breitbart News."