North Carolina will be one of the states that voters should pay attention to. It apparently has a U.S. Senate seat because Republican Senator Thom Tillis chose not to seek another term. Democrat Roy Cooper, who served as governor of North Carolina for two terms, is running against Republican National Committee chair Michael Whatley. Since Republicans have a majority, in the Senate this race could play a role in which party holds the chamber. With Republicans holding a majority, in the Senate this race could have a direct effect on which party controls the chamber, as per a report by Spectrum News and Ballotpedia.