SC-01

South Carolina’s Mark Sanford Falls in GOP Primary
Frequent Trump critic becomes second incumbent to lose this year

South Carolina Rep. Mark Sanford lost his primary Tuesday night. (Bill Clark/CQ Roll Call file photo)

South Carolina Rep. Mark Sanford on Tuesday became the second incumbent of the year to fall in a Republican primary, losing to a challenger who questioned his loyalty to President Donald Trump.

With 99 percent of precincts reporting, state Rep. Katie Arrington was leading Sanford 51 percent to 47 percent when The Associated Press called the race.

Trump Endorses Mark Sanford’s Primary Challenger
In late election day tweet, Trump backs state Rep. Katie Arrington

GOP Rep. Mark Sanford is facing a competitive primary challenge on Tuesday. (Bill Clark/CQ Roll Call file photo)

President Donald Trump tweeted his support Tuesday for the primary challenger to a sitting Republican lawmaker and member of the House Freedom Caucus.

Less than three hours before polls close in South Carolina, Trump took aim at GOP Rep. Mark Sanford, who’s facing his toughest primary challenge yet in the 1st District. Trump endorsed GOP state Rep. Katie Arrington, who’s attacked Sanford for being too critical of the president.