poll, at the debate where she challenged biden on issues of race and bussing. warren with a slow steady uptake and continuing for bernie sanders who just seems to be losing a lot of that progressive grounds to those of warren. >> let's talk about elizabeth warren, we talked about being big on policies. there is an interesting in this poll that the number of democrats who want to elect a candidate and prefer a nominee who shares their view is actually down. the number of people who want the best kacandidate to defeat trump is up the same amount. >> that sort of notion of can i have both or do i have to make a choice. that's why we have seen few voters coming down hard on which candidates they want.