Democratic presidential hopeful, Sen. Barack Obama, D-Ill., addresses an audience during a campaign event in Sumter, S.C. Wednesday, Jan. 23, 2008. (AP Photo/Steven Senne)
Democratic presidential hopeful Sen. Barack Obama, D-Ill., addresses a cheering crowd during a campaign event in Sumter, S.C. Wednesday, Jan. 23, 2008.(AP Photo/Steven Senne)
Democratic presidential hopeful Sen. Barack Obama, D-Ill., visits with members of the St. James United Methodist Church during family night in Darlington, S.C., Wednesday, Jan. 23, 2008. (AP Photo/Charles Rex Arbogast)
Democratic presidential hopeful Sen. Barack Obama, D-Ill., laughs at a young child's reaction to him during family night at the St. James United Methodist Church in Darlington, S.C., Wednesday, Jan. 23, 2008. (AP Photo/Charles Rex Arbogast)
Democratic presidential hopeful Sen. Barack Obama, D-Ill., poses with the St. James United Methodist Church choir during family night in Darlington, S.C., Wednesday, Jan. 23, 2008. (AP Photo/Charles Rex Arbogast)
Democratic presidential hopeful Sen. Barack Obama, D-Ill., greets people in the audience at the conclusion of a campaign event, in Sumter, S.C. Wednesday, Jan. 23, 2008. (AP Photo/Steven Senne)
Democratic presidential hopeful, Sen. Barack Obama, D-Ill., below center, addresses an audience as a Sumter police officer watches from a balcony during a campaign event, in Sumter, S.C., Wednesday, Jan. 23, 2008. (AP Photo/Steven Senne)