The voting in the Iowa GOP caucuses begins Tuesday night. On the last day before the caucuses, Republican presidential candidates campaigned across the state Monday. Their goal was the same — motivating supporters to leave their homes on a cold evening, go to their precinct meeting places and vote.
Much has been made of the unusual volatility of the GOP race this year, with candidates taking turns in the front-runner spot in Iowa. But with more outside money and a reliance on social media, the run-up to this election season's Iowa caucuses has been different in other ways as well.
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