flying around on twitter and statements by the campaign, barack obama would not be a progressive, joe biden would not be a progressive, jeanne shaheen would not be a progressive. even the late great senator paul wellstone would not be a progressive. >> sanders' jab at clinton speaks to louder conversation and growing discord happening in the democratic party. with hours to go, new fund-raising totals creating another stir. sanders outraised clinton in january, according to numbers from both campaigns. look at the numbers, $21 million to $15 million. clinton comes in to the debate tonight with an apparent iowa win under her built but the raiser-thin margin is driving some debate even with iowa, and it's supposed to be in the rear view mirror. we're joined live by two of our best correspondents who have been in the trenches covering the campaigns for months now. kasie hunt and kristen welker here with me to talk about a lot that's going on. and guys, we've got four hours and a lot of bombshells already including "the des moines register," coming out say essentially all of the heat that's happ