Republican presidential candidate, former House Speaker Newt Gingrich speaks at a rally in Montgomery, Ala., Wednesday, March 7, 2012. (AP Photo/David Bundy)

Associated Press
Republican presidential candidate, former House Speaker Newt Gingrich speaks at a rally in Montgomery, Ala., Wednesday, March 7, 2012. (AP Photo/David Bundy)
Republican presidential candidate, former House Speaker Newt Gingrich speaks at a rally in Montgomery, Ala., Wednesday, March 7, 2012. (AP Photo/David Bundy)
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