Debra Kay Lesko ( LESS-koh; née Lorenz; born November 14, 1958) is an American politician who has represented Arizona's 8th congressional district in the U.S. House of Representatives since 2018. The district is in the West Valley portion of the Phoenix metropolitan area and includes Glendale, Surprise, Sun City, Peoria, and part of western Phoenix. A member of the Republican Party, Lesko previously served in the Arizona State Legislature from 2009 to 2018. Lesko served in the Arizona Senate from 2015 to 2018. She was president pro tempore of the Arizona Senate from 2017 to 2018. Lesko also served as a member of Arizona House of Representatives from 2009 until 2015. She became the Representative for Arizona's 8th congressional district after winning a 2018 special election.In October 2023, Lesko announced she would not seek reelection in 2024. She later announced a run for the Maricopa County Board of Supervisors representing District 4.