Chuck Edwards, a three-term state senator and business owner, has edged out Representative Madison Cawthorn in the Republican primary for a House seat representing North Carolina’s 11th District.
Luke Ball, a representative for Mr. Cawthorn, said late Tuesday that the congressman had called Mr. Edwards to concede. Mr. Edwards’s narrow triumph was called by The Associated Press.
The outcome served as a rebuke of Mr. Cawthorn, a right-wing firebrand and the youngest freshman in Congress, who was once seen as a rising star of the Republican Party.
It is also a significant victory for the old guard Republicans in North Carolina and Washington who in recent months had been feuding with Mr. Cawthorn over his personal and political errors and foibles.