Congressional Black Caucus Institute , CNN host Democratic debate tonight . Front - runners vying for African - American voters ahead of South Carolina primary . Sen. Barack Obama visits former home of the Rev . They now appear to be leaning heavily toward Obama , who if elected , would become the country 's first black president . Martin Luther King , Jr. in Atlanta . Sen. Hillary Clinton picks up King 's seat at Harlem church .
Congressional Black Caucus Institute , CNN host Democratic debate tonight . Front - runners vying for African - American voters ahead of South Carolina primary . Sen. Barack Obama visits former home of the Rev . Martin Luther King , Jr. in Atlanta . Sen. Hillary Clinton picks up King 's seat at Harlem church .