BALDWIN: Looking at politics here on this Tuesday. As far as Democrats are concerned, you have Hillary Clinton. She's in Iowa where, in four months, voters will head to the caucuses in the first test for those candidates. I have Brianna Keilar live in Des Moines with Hillary Clinton. And looking at the latest number numbers, in that state, for the first time, with Bernie Sanders, what's she doing to try to punch through that?</s>BRIANNA KEILAR, CNN POLITICAL CORRESPONDENT: It's really about organization and to look at what Hillary Clinton has had on the ground game. It's really surpassed what Bernie Sanders has done from day one. More volunteer, more campaign workers. She continues to outpace Bernie Sanders in that regard. She needs to because there's certainly an enthusiasm gap in Iowa. He's been able to book larger venues and bring more people in, but her campaign is confident that her organization is going to translate better to bringing out caucus goers on caucus night in February. Today she will be here looking at a couple hundred people as some audience members are coming in and she will be talking about changing she wants to make to Obamacare, tackling the really why prescription drug prices. She will be talking about capping out of pocket expenses on prescription drugs. Bernie Sanders nipping at her heels. He put out a proposal not too different from hers, but one of his proposals includes importing some drugs from foreign countries. So this is an issue that I think Democrats really have to combat in Iowa because they are hitting Hillary Clinton on some of the fact that the biggest insurers were granted rate increases that could affect policyholders in Iowa. If all politics are local, this is something that's potentially going to play big here.</s>BALDWIN: Play big there. Also I'm sure it will be pervasive come the presidential debate in Vegas in a couple weeks. Brianna Keilar, we'll see you there. Thank you so much. Coming up next, all eyes on the pope scheduled to touch down shortly. His first steps on American soil. Live pictures. The red carpet has been rolled out. The stairs are waiting. Security getting organized. Standby, we'll take it live for you here on CNN.
Clinton Returns to Iowa, Trailing Sanders