i think you're on the wrong side of this if your are going for sigel payor. -- for single-payer. trump: you're having a hard time hearing me tonight. john: when you watch that, what do you learn from it? mark: that you have to take him on in the blood of the debate. interims terms of the moderators wanting to exhibit control, and in terms of trump's ability to lash back at the rules, take them on when you're confident that moderators will give you time to get out the last word. in this case, trump got the last word. i don't think rand laid a glove on him. john: there is a stature gap in terms of rand paul, who seems small. compared to donald trump it will have to be someone a little bigger on that stage, someone who poses a more significant challenge to him. someone like ben carson, if he decided to go that route. john kasich or something else. somebody that can go toe to toe with trump. mark: the one exception is cary fiorina, i think the cnn moderators will get into the bloodlust that a lot of media has, that they want to see a trump-fiorina face-off. john: let's look at the br