The 2018 United States Senate election in New Mexico took place on November 6, 2018, to elect a member of the United States Senate to represent the state of New Mexico, concurrently with other elections to the United States Senate, elections to the United States House of Representatives, and various state and local elections. The candidate filing deadline was March 13, 2018. The Republican and Democratic primary elections were held June 5, 2018. Johnson's results were the highest results for a Libertarian candidate in New Mexico history.