Its county seat is Las Cruces,[2] the second-most populous municipality in New Mexico after Albuquerque, with 111,385 as of the 2020 U.S.[3] The county is named for Doña Ana Robledo, who died there in 1680 while fleeing the Pueblo Revolt.The waivers applied to 27 laws, including protection of endangered species, archeological sites, and historic places.The county also includes one of New Mexico's four large lava fields, the Aden Malpais, and one of the world's largest maare volcanoes, Kilbourne Hole.Doña Ana is part of New Mexico's 2nd congressional district, which is currently held by Democrat Gabe Vasquez.The current state representatives are Jenifer Jones, Micaela Lara Cadena, Raymundo Lara, Angelica Rubio, Nathan Small, Joanne Ferrary, Tara Jaramillo, Doreen Gallegos and Willie Madrid, respectively.The lawyer stated that pictures taken before and after Slevin's time in jail were key to the trial's outcome.[28] In August 2013, County Clerk Lynn Ellins announced he would begin granting marriage licenses to same-sex couples.[29] Several Republican state legislators vowed to file suit against Ellins in a bid to halt the licenses from being issued.