Jermaine Johnson holds the leading position in the South Carolina Democratic primary for governor, scheduled for June 9, 2026, as trader consensus places him well ahead of Billy Webster, Mullins McLeod, and Justin A. Bennett. Johnson's current role as a state representative provides established name recognition and legislative experience that shapes primary dynamics. Recent polling shows him maintaining a clear edge over McLeod, while a May forum in Columbia allowed all major candidates to outline priorities on issues such as education and economic development before Democratic voters. Webster's background as a former White House staffer and McLeod's prior statewide run add competitive elements, yet neither has closed the gap in recent assessments. The primary's outcome will determine the party's nominee for the November general election against the Republican incumbent.