Jermaine Johnson's status as the sole sitting state representative among the Democratic contenders has solidified trader consensus around his 64 percent implied probability in the June 9 primary for South Carolina governor. His legislative record and early October 2025 entry have provided consistent name recognition across key districts, outpacing later entrants. Billy Webster's March 2026 announcement, drawing on his prior role as chief of staff to former Governor Dick Riley, and Mullins McLeod's August 2025 filing as a Charleston attorney have each captured roughly 15 percent, reflecting moderate donor interest but limited statewide infrastructure. Justin Bennett's smaller share aligns with his lower profile. With the primary weeks away and no major endorsements or polling shifts in the past month, the current positioning rests on Johnson's early organizational advantages in a four-candidate field.