♪ >> i am bernie sanders, and i approve this message. john: with that eight point lead in iowa, let's just say that ernie has a lead in his bag. mark, my question for you is, who is currently leading the war? mark: the clinton folks when after sanders today on national security very tough. they are still going after him on this big theme, one that bill clinton seems to like, which is that she is ready to be president, he is not. suggesting that he is not

helped give health care for 8 million kids, the senator who helps cities rise again, the secretary of state who stood up for america and stared down hostile leaders around the world is the one candidate for president who has everything it takes to do every part of the job. today in iowa, clinton followed up by calling herself a candidate who can "deliver in reality." she also said that sanders has struggled to gain support for his health care proposal, a sign that he is an "in theory" candidate. rough. here is what sanders put on television today in iowa. ♪