Republican presidential candidate and former House Speaker Newt Gingrich speaks during a South Carolina Republican presidential primary night rally, Saturday, Jan. 21, 2012, in Columbia, S.C. Newt Gingrich won the South Carolina primary. (AP Photo/Matt Rourke)

Photo by: Matt Rourke

Republican presidential candidate and former House Speaker Newt Gingrich speaks during a South Carolina Republican presidential primary night rally, Saturday, Jan. 21, 2012, in Columbia, S.C. Newt Gingrich won the South Carolina primary. (AP Photo/Matt Rourke)