Rep. Nancy Mace is in a heated reelection bid against GOP rival Katie Arrington. They're
vying to represent Charleston and much of the coastline. The district leans Republican, meaning that in an already strong GOP year, the primary winner is likely to nab the seat in November. Trump has endorsed Arrington, seemingly not so much due to her political and policy virtues but due to sporadic criticism of the former president voiced by Mace.