Democrat Annie Andrews will defeat Republican Sen. Darline Graham in South Carolina’s U.S. Senate race, NBC News projected Tuesday night, delivering Democrats a striking pickup in a state Republicans have dominated for decades. Andrews had 918,263 votes, or 51%, compared with 842,905 votes, or 46.8%, for Graham with an estimated 86.3% of the vote counted when NBC projected the race. Independent Kasie Whitener had 1.1%. The result caps an extraordinary Senate contest that began after longtime Republican Sen. Lindsey Graham died in July. Republican Gov. Henry McMaster appointed Graham’s sister, Darline Graham, to complete his term. She later decided to...