WASHINGTON (AP) — Nikki Haley has won the District of Columbia’s Republican primary. It’s her first victory over Donald Trump in the GOP primary race. The Associated Press declared Haley the winner Sunday night after D.C. Republican Party officials released the vote totals. Her victory halts the former president’s sweep of the GOP voting contests at least temporarily, though Trump remains the race’s dominant front-runner. There are only about 23,000 registered Republicans in the nation’s capital, which is heavily Democratic.