Reading Time: 1 minutes

A button supporting Republican presidential candidate and former U.S. House Speaker Newt Gingrich is pictured on a voter’s shirt at his South Carolina primary election night rally in Columbia, South Carolina, January 21, 2012 (Credit: Reuters/Mary Ann Chastain)

A button supporting Republican presidential candidate and former U.S. House Speaker Newt Gingrich is pictured on a voter's shirt at his South Carolina primary election night rally in Columbia, South Carolina, January 21, 2012 (Credit: Reuters/Mary Ann Chastain)