was agitated over how long it took security to get rid of protesters. >> okay, security, move a little faster please. thank you, security. get them out of here. >> reporter: after most of the protesters left, trump talked about guns. he is against gun free zones in america. he delivered sharp criticism against his rivals. from here, trump goes to south carolina on friday for a rally and kicks up campaigning in iowa over the weekend. christine and alison. >> thank you, jeff. let's bring in cnn political reporter tal. i want to talk about the people who don't agree with him. explaining why he calls it imaginary fiction.