Jermaine Johnson holds the lead in the South Carolina Democratic primary for governor, scheduled for June 9, 2026, reflecting his established role as a state representative, early entry into the race, and decision to remain despite earlier fundraising concerns raised in March. Traders assign Billy Webster and Mullins McLeod notable shares based on Webster's prior White House experience and McLeod's legal background, which position both as viable alternatives in a fragmented field. Justin A. Bennett trails with limited visibility. Recent polling and candidate filings indicate Johnson's name recognition and party support provide a measurable edge, though the split among challengers keeps the outcome sensitive to turnout and late campaign developments in the final weeks before the primary.