It would have been clearer if they had not added those that think he is not (39%) and those unsure (16%) together to get the 55% that supposedly felt he wasnt capable. They should have just said 39% didnt think the could do it and 16% were unsure. So net-net, it looks like most people are open to hearing what he has to say. Most likely the 39% that say he couldnt do it are the hard core Dems that arent going to vote for him anyway.