senator rubio after that, gave a primer on the nuclear triad. this is the ultimate test of the potential catastrophe that the world might face if the president of the united states has to decide to use nuclear weapons. it is something he will be briefed on in great detail the night before he takes his -- or makes his inaugurational address. so if mr. trump does continue on the path that he's on he better learn some of the intricacies of what power is associated with holding office and how he has to understand the things that go along with. that. >> michael all the candidates were talking tough last night. >> senator cruz -- would you carpet bomb raqqah, the isis capital, where there are a lot of civilians? yes, or no? >> you would carpet bomb where