A special election was held on June 1, 2021, to fill the vacancy in New Mexico's 1st congressional district created by Representative Deb Haaland's resignation from the United States House of Representatives to become the Secretary of the Interior in Joe Biden's administration. State Representatives Patricia Roybal Caballero, Georgene Louis and Melanie Stansbury and state Senator Antoinette Sedillo Lopez sought the Democratic nomination. State Senator Mark Moores, radio host Eddy Aragon and activist Elisa Martinez sought the Republican nomination.