Republican presidential candidate and former House Speaker Newt Gingrich campaigns outside Mama Lou's restaurant in Robertsdale, Ala., Saturday March 10, 2012. (AP Photo/ John David Mercer)

Associated Press
Republican presidential candidate and former House Speaker Newt Gingrich campaigns outside Mama Lou's restaurant in Robertsdale, Ala., Saturday March 10, 2012. (AP Photo/ John David Mercer)
Republican presidential candidate and former House Speaker Newt Gingrich campaigns outside Mama Lou's restaurant in Robertsdale, Ala., Saturday March 10, 2012. (AP Photo/ John David Mercer)
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