Apparently they have too many women in office:
Incumbent lawmakers running for re-election are used to campaigning against primary challengers, but usually those challengers aren't other incumbents. But that's a situation four Republican state senators are facing this year after redistricting drew two incumbents each into District 45 and District 31. First-term Sen. Deanna Ballard, R-Watauga, faces off against three-term Sen. Shirley Randleman, R-Wilkes, in District 45, which includes Watauga, Wilkes, Avery and Alleghany counties and part of Surry County.
Nathan Miller, vice chairman of the Watauga County Republican Party, said a lot of people are frustrated with having a double-bunked district. "They're both highly qualified, they're both highly competent," Miller said. "Frankly, I don't know why they got double-bunked. ... They're both strong-willed females in the N.C. Senate. Why would you want to double-bunk them? Eventually one of them is going to lose."
If by "eventually" you mean tomorrow, then yes, eventually one of them will lose her seat. The other race mentioned (District 31) also has a double-bunked GOP woman (Joyce Krawiec), so that makes three out of the four unlucky candidates female. Because GOP values are either inscrutable or non-existent.