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Images from Iowa on the day of the caucuses.
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Images from Iowa on the day of the caucuses.
Former Massachusetts Gov. Mitt Romney eked out a win after he and former Pennsylvania Sen. Rick Santorum swapped the slimmest of leads back and forth in Tuesday's caucuses. Texas Rep. Ron Paul finished third.
The Texas governor said he's returning home to determine whether there is a path forward for his campaign. He got 10 percent of the vote and finished fifth.
Newt Gingrich is pitching himself as a "bold Reagan conservative" in contrast to Mitt Romney's "timid Massachusetts moderate."