President Donald Trump’s endorsement of Darline Graham to succeed her late brother for a full Senate term has sparked a backlash among his supporters. Henry McMaster to fill Lindsey Graham’s seat after the senator suddenly died earlier this month. Darline Graham plans to campaign to the right of her late brother Lindsey Graham. Republican voters have already rejected Trump’s preferred candidates in the GOP primaries for the South Carolina, Georgia, and Iowa governor’s races. Senate Majority Leader John Thune has not weighed in publicly on the South Carolina Republican primary.