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Republican presidential candidate former House Speaker Newt Gingrich and his wife Callista, left, wave to supporters before speaking to a crowd gathered for a rally after he won the Georgia primary Tuesday, March 6, 2012, in Atlanta. (AP Photo/John Bazemore)

Associated Press
Republican presidential candidate former House Speaker Newt Gingrich and his wife Callista, left, wave to supporters before speaking to a crowd gathered for a rally after he won the Georgia primary Tuesday, March 6, 2012, in Atlanta. (AP Photo/John Bazemore)
Republican presidential candidate former House Speaker Newt Gingrich and his wife Callista, left, wave to supporters before speaking to a crowd gathered for a rally after he won the Georgia primary Tuesday, March 6, 2012, in Atlanta. (AP Photo/John Bazemore)
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