Former Vice President Joe Biden and Sen. Bernie Sanders are locked in a tight contest in South Carolina.<br />That's according to a new NBC News/Marist poll ahead of the state's Democratic primary Saturday.<br />Biden gets the support of 27 percent of likely Democratic primary voters in South Carolina.<br />Sanders gets 23 percent, which is well within the poll's margin of error of plus-minus 6 percentage points.<br />Tom Steyer has 15%.<br />Pete Buttigieg has 9% in the new poll.
