COLUMBIA, S.C. — South Carolina’s U.S. Sen. Tim Scott on Friday evening endorsed former President Donald Trump. The New York Times was first to report the decision. Scott appeared at a rally Friday night with Trump in New Hampshire, which holds its GOP primary Tuesday. The endorsement is a blow to former South Carolina Gov. Nikki Haley, who appointed Scott to the U.S. Senate in December 2012. Scott was serving in the U.S. House at the time. Haley and Trump have been working to get Scott’s endorsement ever since the state’s junior senator dropped out of the race in November. “We need a presiden…