Supporters of Bernie Sanders may be restless in starting their revolution against the Democratic establishment, but Jim Clyburn just proved they may have to wait a moment.

The South Carolina representative helped save Joe Biden’s campaign, issuing an eleventh-hour endorsement. According to exit polls, 47% of South Carolina Democrats said the endorsement was an important factor in their vote. With a victory margin so wide that newsrooms could call the election within the minute after the polls closed, Biden dominated the Palmetto State at the moment he needed to the most. His campaign, on life support just one week ago, is suddenly viable once more, with Biden’s support among black voters spelling ample potential for success in both a primary and a general election.