Republican presidential candidate and former House Speaker Newt Gingrich speaks at a town hall meeting in the Student Center at Louisiana Tech University in Ruston, La., on Tuesday, March 20, 2012. (AP Photo/The News-Star, Ben Corda)

Photo by: Ben Corda

Republican presidential candidate and former House Speaker Newt Gingrich speaks at a town hall meeting in the Student Center at Louisiana Tech University in Ruston, La., on Tuesday, March 20, 2012. (AP Photo/The News-Star, Ben Corda)