Primary elections in twelve of the thirteen districts were held on May 8, 2018.

Labor unions Organizations George Holding Republican George Holding Republican Incumbent Republican George Holding, who had represented the district since 2017, and had previously represented the 13th district between 2013 and 2017, ran for re-election.

The Democratic Congressional Campaign Committee included North Carolina's 2nd congressional district on its initial list of Republican-held seats considered targets in 2018.

Organizations Organizations Labor unions Organizations Virginia Foxx Republican Virginia Foxx Republican Incumbent Republican Virginia Foxx, who had represented the district since 2005, ran for re-election.

The Democratic Congressional Campaign Committee included North Carolina's 8th congressional district on its initial list of Republican-held seats considered targets in 2018.

Organizations Labor unions Organizations Robert Pittenger Republican Election results annulled Incumbent Robert Pittenger, who had represented the district since 2013, ran for re-election.

Organizations The incumbent, Pittenger lost his party's nomination to Mark Harris.

U.S. Executive Branch officials Organizations Statewide officials State legislators Labor unions Organizations Individuals Individuals On November 27, 2018, the State Board of Elections declined to certify the election result in this congressional district, while certifying all the others, pending investigation of unspecified "potential wrongdoing".

[98] An investigation was opened focusing on McCrae Dowless, a political operative who was hired by the Harris campaign for get-out-the-vote work, and allegations of irregularities involving the collection of absentee ballots.

[99][100] On December 28, 2018, incoming House Majority Leader Steny Hoyer stated House Democrats' official position of declining to seat Harris on January 3.