Photo: Win McNamee/Getty Images South Carolina has a reputation for dirty politics. Many people still remember the 2000 Republican presidential primary in the Palmetto State, when a well-orchestrated smear campaign claiming that John McCain had fathered an illegitimate Black baby reportedly helped George W. Bush win the contest and kill McCain’s momentum in the race. In 2009, then-Governor Mark Sanford ’s career derailed when he was caught engaging in an extramarital affair while he claimed to