Republican presidential candidate, former Massachusetts Gov. Mitt Romney waves to supporters during his victory celebration after winning the Florida primary election .

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, and his wife Ann greet supporters at his Florida primary primary night rally .

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, and his wife Ann celebrates his Florida primary election win at the Tampa Convention Center.

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Supporters of Republican presidential candidate, former Massachusetts Gov. Mitt Romney, cheer the closing of the polls at his Florida primary primary night rally.

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Republican presidential candidate former Massachusetts Gov. Mitt Romney thanks campaign workers as he visits them in his “War Room” with advisers during the Florida primary election at the Tampa Convention Center.

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, stands with his sons, from left to right, Josh, Tagg, and Craig, as he watches results for the Florida primary election in the “War Room” at the Tampa Convention Center.

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Supporters of Republican presidential candidate, former Massachusetts Gov. Mitt Romney, cheer as voting results come in during the Florida primary election.

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Supporters of Republican presidential candidate, former Massachusetts Gov. Mitt Romney, cheer the closing of the polls at his Florida primary primary night rally.

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, visits with campaign workers in his “War Room” during the Florida primary election at the Tampa Convention Center .

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Supporters of Republican presidential candidate, former Massachusetts Gov. Mitt Romney, cheer the closing of the polls at his Florida primary primary night rally.

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, visits with campaign workers in his “War Room” with advisers during the Florida primary election at the Tampa Convention Center .

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney kisses his wife Ann during his victory celebration after winning the Florida primary election .

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Nancy C. Accevedo and Mario Gustavo Tanguis, supporters of Republican presidential candidate former House Speaker Newt Gingrich view results during a Florida Republican presidential primary night rally.

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Republican presidential candidate former House Speaker Newt Gingrich speaks at a Florida Republican primary night rally in Orlando, Fla.

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Voter walk outside of a polling place at the First Baptist Church of Windermere, in Orlando, Fla.

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Republican presidential candidate, former House Speaker Newt Gingrich campaigns outside a polling place at the First Baptist Church of Windermere in Orlando, Fla.

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Two unidentified supporters of Republican presidential candidate Newt Gingrich stand outside a Hallande, Fla. polling center.

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Republican presidential candidate, former House Speaker Newt Gingrich, accompanied by his wife Callista, campaigns outside a polling place at the First Baptist Church of Windermere in Orlando, Fla. Michael Reagan, son of former President Ronald Reagan is at right.

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Eric Papalini holds up a puppet of Republican presidential candidate, former House Speaker Newt Gingrich at a Florida Republican primary night rally.

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A workman mounts a sign to the podium before Republican presidential candidate former House Speaker Newt Gingrich’s Florida Republican presidential primary night rally.

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Antonita Fonari, right, watches election results at Republican presidential candidate, former House Speaker Newt Gingrich’s Florida Republican presidential primary night rally.

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Republican presidential candidate former House Speaker Newt Gingrich speaks at a Florida Republican primary night rally.

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Republican presidential candidate, former House Speaker Newt Gingrich campaigns at Fred’s Southern Kitchen.

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Republican presidential candidate former House Speaker Newt Gingrich speaks with members of the media during a campaign stop outside a polling place at the First Baptist Church of Windermere, in Orlando, Fla.

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Republican presidential candidate former House Speaker Newt Gingrich speaks during a Florida Republican presidential primary night rally in Orlando.

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Republican presidential candidate, former House Speaker Newt Gingrich campaigns outside a polling place at Celebration Heritage Hall in Celebration, Fla.

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Republican presidential candidate former House Speaker Newt Gingrich speaks during a Florida Republican presidential primary night rally in Orlando.

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, waves to supporters with his wife Ann and family at his Florida primary primary night rally in Tampa.

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, greets supporters as he celebrates his Florida primary election win at the Tampa Convention Center.

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Republican presidential candidate, former Massachusetts Gov. Mitt Romney, celebrates his Florida primary election win at the Tampa Convention Center.

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