Biden Groups News Today

So weve seen now elizabeth warren make strides on electability and next look for does elizabeth warren or other candidates make some strides into those biden groups, african-americans, older voters and those moderate conservative democrats. >> interesting. david chalian, thanks. lets chew over this. karen, if your advising bernie sanders or elizabeth warren, what would you tell them given this poll. >> i would tell them keep making the argument that you are the person that could beat trump becau...