go to war. it gets to temperament. that's why it very much worries me to have someone like donald trump or chris christie incharge of our nuclear arsenal. >> on monday you're launching a new web video. it's focussing on senator ted cruz. let's take a look. >> it sounded like you wanted the bill to pass? >> the web ad describes him as flip-flopper. cruz describes himself as a, quote, courageous conservative. this ad and other attacks we've seen against senator cruz depict him as a craven politician. you worked alongside him for several years. is that how you see ted cruz, as a craven opportunist? >> i think on several things he wants to have it both ways. on immigration, at the time, he supported an amendment that said