In good early sign for Biden, exit polls find Clyburn endorsement influential in South Carolina
2:41pm PST - February 29th, 2020 south carolina primary - ReutersAbout six in 10 voters in South Carolina's Democratic primary on Saturday said influential congressman James Clyburn's endorsement of Joe Biden was a factor in their decision - a good early sign for Biden's chances in the pivotal early nominating state, early…