Electoral votes: 8
2004 result: Bush 58%, Kerry 41%
2000 result: Bush 57%, Gore 41%
Most recent Democratic win (1976): Carter 56%, Ford 43%
African American percentage: 29.0% (national average is 12.8%)
Link to polls in Real Clear Politics
McCain leads in the polls, but by at little as six points in a recent one. Obama presumably needs to induce a large increase in black voter turnout, in order to end the recent streak of Republican victories in South Carolina. That will be difficult, but not impossible.