FILE - In this May 14, 2010 file photo, former Alaska Gov. Sarah Palin waves to supporters after she endorses S.C. gubernatorial candidate Nikki Haley,left, during a campaign rally at The Statehouse in Columbia, S.C. With support from tea party voters and Sarah Palin, state Rep. Nikki Haley entered a Republican runoff Tuesday that could move her closer to becoming South Carolina's first woman governor. (AP Photo/Mary Ann Chastain, File)