COLUMBIA, South Carolina (CNN) – During the last six months, each of the three Democratic frontrunners made campaign pilgrimages to a series of dilapidated schools along Interstate 95 that make up the so-called "Corridor of Shame."
That strip of run-down, rural schools gained national attention in a 2005 documentary that angered many South Carolinians, who saw the schools as a residual symbol of racial discrimination in rural parts of the state.
Though John Edwards and Hillary Clinton made those schools a focus of many speeches throughout their campaigns, Barack Obama won the counties that encompass them by wide margins.
Marlboro, Dillon, Clarendon, Florence and Darlington Counties all went big for Obama on Saturday.
- CNN South Carolina Producer Peter Hamby