bernie sanders last night in mason city, iowa, going after hillary clinton for taking money from the one percenters. why not in iowa with a few days left before the caucuses? chuckis moderator of "meet the press" and host of npd daily. geography is everything right now. >> it tells a lot. bernie sanders has a great fund raising base. they throw out an e-mail and they can get another million dollars. >> they have 2.5 million individual contributors. >> and they get these -- it replenishes itself. almost. i had a competitor of the sanders campaign in the democratic party refer to him of a self-funder, almost. so the pressure is on hillary clinton's campaign. they need primary money. they have to keep raising money at fundraisers. they don't have mail lists that just produces money in a fast way where she can just campaigning. and that's -- if sanders wins iowa and we're looking at a long drawn-out primary process, this is going to become a more acute issue for them. >> that's because if you look at our new poll, the nbc news "wall street journal" poll, they're in a dead heat in the margin of iowa. knocking him out here in iowa is possible but it's pretty close. lo