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iowa caucuses. first big test really, the 2012 presidential race. the candidates crisscrossing that state. five campaigning in iowa today. so far, none have won the support of a particular aiiowa congressman whose endorsement carries a lot of weight. >> a large percentage of iowans havent decided. im among them. i thought i would come to a conclusion in september or october. were within a week of the caucus and i have not gotten to that point. >> still up in the air. a fact finding tea...