Biden hopes South Carolina win could help on Super Tuesday

Joe Biden is confident that he is poised for victory in Saturday's first-in-the-South primary, just weeks after his third presidential campaign left New Hampshire badly wounded and close to broke.The question is whether Biden is correct that a win in South Carolina would propel him toward a strong showing in the Super Tuesday slate of 14 states days later.Biden's top rivals, Bernie Sanders and Mike Bloomberg, have dwarfed him in organization and spending, and early voting had begun in many state