FILE - In this Dec. 3, 2010, file photo former Alaska Gov. Sarah Palin talks during a book signing in Columbia, S.C.  By this point every four years, South Carolina expects to see a flood of White House hopefuls crossing the state. This time the tea party has upended the political landscape as Republicans weighing presidential bids have all but ignored the state that in modern history has played an outsized role in GOP nomination fights. (AP Photo/Virginia Postic, File)

Photo by: Virginia Postic

FILE - In this Dec. 3, 2010, file photo former Alaska Gov. Sarah Palin talks during a book signing in Columbia, S.C. By this point every four years, South Carolina expects to see a flood of White House hopefuls crossing the state. This time the tea party has upended the political landscape as Republicans weighing presidential bids have all but ignored the state that in modern history has played an outsized role in GOP nomination fights. (AP Photo/Virginia Postic, File)