Ben Ray Luján (/luːˈhɑːn/ loo-HAHN; born June 7, 1972) is an American politician who has served as the junior United States senator from New Mexico since 2021. He served as the U.S. representative for New Mexico's 3rd congressional district from 2009 to 2021 and the assistant House Democratic leader (officially the "Assistant Speaker") from 2019 to 2021. He served as a member of the New Mexico Public Regulation Commission from 2005 to 2008, where he also served as chairman.