Jackson and Brady are both Republicans. Brady has not yet announced whether he will run for re-election, but Jackson's announcement suggests he won't. It would be highly unusual for a sitting Court of Appeals judge to challenge a justice from her own party.
Court of Appeals Judge Bob Hunter, a Democrat, has said he plans to run for the seat, as well.
Judicial races are technically nonpartisan in North Carolina. The candidate's political party does not appear on the ballot.
Jackson was first elected to the appeals court in 2004. She previously served as general counsel for the Department of Labor and as associate general counsel for former Gov. Jim Martin, a Republican. She also clerked for then-Associate Justice Burley Mitchell, a Democrat, on the N.C. Supreme Court.