Republican presidential candidate, former Massachusetts Gov. Mitt Romney, campaigns at American Legion Post 15 in Sumter, S.C., Saturday, Jan. 14, 2012. (AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, campaigns at American Legion Post 15 in Sumter, S.C., Saturday, Jan. 14, 2012. (AP Photo/Charles Dharapak)