Jermaine Johnson leads the South Carolina Democratic gubernatorial primary field ahead of the June 9 vote, bolstered by his position as a sitting state representative and early campaign launch that has helped consolidate support among party activists and voters. Billy Webster’s background as a former White House chief of staff and experienced businessman has positioned him as a credible alternative with moderate appeal, while Mullins McLeod, a Charleston attorney who previously sought the nomination in 2010, draws backing from legal and Lowcountry networks. Justin Bennett remains a long-shot contender with minimal visibility. Recent candidate filings and limited early polling showing Johnson ahead among decided Democratic voters have reinforced trader assessments of the race dynamics, though a large undecided segment and the short timeline to primary day leave room for shifts based on upcoming debates or endorsements.