COLUMBIA, S.C. (AP) -- Joe Biden has scored a resounding victory in South Carolina's Democratic primary.
The former vice president rode a wave of African American support to a Saturday win that ended Bernie Sanders' winning streak and offered badly needed momentum for Biden's unsettled White House bid.
The top finish came in a do-or-die campaign that followed three underwhelming performances.
South Carolina's first-in-the-South primary marked the first major test of the candidates' appeal among black voters.
Vermont senator Bernie Sanders placed second, having won the past two contests in Nevada and New Hampshire.
He also tied for first with former South Bend, Indiana, Mayor Pete Buttigieg in Iowa.
Biden's win could work to blunt Sanders' momentum heading into Super Tuesday, when 14 states and American Samoa weigh in on the race.