>> well, you know, he can find doc brown, get in a time machine and knock off ten years. >> we all would want to do that. >> but really that's not going to happen. yamiche, as you said, the polling before the debate suggested that the main weakness was his advanced age. that's it. unfortunately the debate performance has made that center stage. it has taken the spotlight of what this race should be about, which is a referendum on the dictatorship that donald trump would represent if he were to win the election. it's just difficult to see because there are going to be moments if the president stays in this race all the way through the end that are natural, even for a younger person would tax them. and should those moments reinforce the concerns about age, for those voters that are not anybody but trump voters, unfortunately that factors in. >> yeah, yeah, that definitely factors in. well, you know, i know that you're a democratic pollster. if you end up in the time machine business, you might want to call the president and see if he wants it ferdand, thank you so much, it's a pleasure to