>> let her go. let her go. >> tucker: a couple of cops were injured, by the way, by those people in masks. he is a professor at california state university, he joins us tonight. so you have seen a pretty notable surge in violence from the left in the past year. is it organic? or is there a point to it? >> i think they function in a void, the democratic party and the progressive movement right now doesn't have an agenda, they can't really run on more open borders or more gas and oil production, or 1.6% gdp growth, and then that void, we have a antifa street to thuggery that is part of the party, and they are sort of a robespierre, and