Iowa is early enough so that liberal Republicans don’t necessarily get their way. Too many candidates.
Paultards are always a force at the start, and Evangelicals have a strong presence in the caucuses.
Iowa Gov. Branstad’s establishment is backing Walker, and would mostly switch to if Christie if Walker’s not in. Jeb’s got nowhere to get significant votes.
Reports are Ted is sucking up % 25-30 of Paul supporters in Iowa...http://www.nytimes.com/politics/first-draft/2015/03/24/cruz-recruits-some-rand-paul-supporters-in-iowa/