A new InsiderAdvantage poll in South Carolina finds Darline Graham (R) leading Annie Andrews (D) in the U.S. Senate race, 46% to 45%, with Mark Hackett (C) at 3% and Kasie Whitener (L) at 2%.South Carolina Senate RaceDarline Graham (R) 46% Annie Andrews (D) 45% InsiderAdvantage poll · likely voters · ±2.83%