qualifications, their positions. and particularly for those of us who are democrats, their electability. >> did hillary clinton help protect wall street? as a new york senator, did she help protect wall street? >> well, do i think hillary clinton or many other senators have shown the courage necessary to stand up for wall street power? the answer is no. >> so msnbc political editor mark murray joins me now. the new online poll from nbc shows clinton well ahead with 53%. this is a double-digit lead over bernie sanders. the poll also finding that people are pretty locked into their opinion. 83% saying they are absolutely or largely certain of their vote. so how does hillary clinton seal this up when she has such a viable contender in bernie sanders? >> reporter: well, thomas, it is important to note the poll you had came from us and is a national poll. the two battlegrounds will be in iowa and new hampshire. and one of the reasons hillary clinton has a very big lead in national polls is she does