take a us behind the scenes in vegas. >> it's interesting. it's like old home week. the former president will not be in room teents for the debate. one democratic official was telling me they didn't want him on tv. every reaction whether he laughed or didn't laugh at a hillary joke or if he grimaced, everybody would be dissecting that. they'll have a little fun and get down to business. >> very interesting about the former president. ed, thank you so much. >> absolutely. bernie sanders getting energy from the liberal left as he challenges hillary clinton. a recent exchange from him on