**Annie Andrews commands 93.5% trader consensus as the South Carolina Democratic Senate primary frontrunner ahead of the June 9 contest, reflecting her dominant fundraising, grassroots momentum from recent campaign events like the April Greenville rally that drew hundreds, and national Democratic endorsements amid a fragmented field with challengers Catherine Fleming Bruce at 4.7% and Kyle Freeman at 2.7%.** Her pediatrician profile emphasizing affordable healthcare, public schools, and economic security bolsters appeal in a low-turnout primary, where incumbency advantages and name recognition often prevail absent polls showing competition. Odds could shift via a late scandal, major rival endorsement, or voter mobilization surge before early voting, though structural barriers favor her path to nomination against Republican incumbent Lindsey Graham.