they call this a big shake up. ben, first to you. is this as it appears to be? because 21 points is not the little engine that could. >> no, this is huge if you're ted cruz and it's big if you're any of the other candidates. because, ultimately, if you're in this field right now, you want to stop this trump momentum. if i'm one of the other candidates that's going on stage tuesday night here at cnn, i'm hoping that anybody but trump wins, and then it shows maybe he is not as invincible as he's been claiming and he's going to run away with this thing in every way. it also changes the way he campaigns, because it puts him on this back foot for the first time. he's been leading in every poll. he's been telling every american that he's leading and crushing everybody in every poll. so ted cruz can win this, even if it's close. even if it shows -- let's just say ted cruz comes in, you know, a point or two behind at the end of the election there. i still think that shows trump's vulnerabilities and that's good for everybody else in the field, strategically. >> jeffrey, this is your guy.