any significant division within the republican party leads to the same awful result. hilary rodham clinton in january of 2017 taking the oath of office as president much of the united states. this country cannot afford that outcome. we republicans have a profound moral duty believe to work together. i'm chris christie, and i approve this message. >> on this angle today, let's go to our cnn senior political reporter manu raju, any response from the rubio camp from the chris christie ad? >> reporter: chair nising the ad but he's not distancing himself from the attack his super pac waged against christie painting him as a -- you know, i should note that chris christie is