Republican Nancy Mace defeats Trump-endorsed challenger Katie Arrington in SC primary
Rep. Nancy Mace (R-SC) -- (Photo of Mace via Shutterstock)

COLUMBIA, S.C. — Republican Nancy Mace defeated Katie Arrington in one of South Carolina’s most hotly-contested primary congressional races Tuesday night, delivering another setback to Donald Trump’s primary endorsement record. Mace’s win over Arrington, who was once Mace’s colleague in the State House, dashes Arrington’s second attempt to represent the 1st Congressional District after she won her primary in 2018 only to lose to Democrat Joe Cunningham. The Associated Press called the race for Mace at 11:13 p.m., showing Mace with about 53 percentage points to Arrington’s nearly 45%. Mace decl...