him. maybe i'm wrong. but i don't get that impression. >> reporter: car sob is someone who has a lot of credibility with evangelical voters. trump of course has responded to carson essentially saying carson doesn't know me, how can he know how i actually feel about my faith. thomas? >> casey, great to see you. thanks so much. as we mentioned earlier, it's another bad day in the polling for hillary clinton. certainly of concern as she was in columbus, ohio, for a women for hillary grass roots event. now as we look at these new poll numbers, it shows that bernie sanders is leading her in the hawkeye state. this comes as clinton tries to show a softer side, sitting down with ellen degeneres in an interview that will be airing today. >> if you are elected, you would be one of the oldest presidents elected. does that matter?