Laphonza Romanique Butler is an American labor union official and politician serving as the junior United States senator from California since 2023. Butler began her career as a union organizer, and served as president of California SEIU State Council from 2013 to 2018. A member of the Democratic Party, she was a regent of the University of California system from 2018 to 2021, and the president of EMILY's List from 2021 to 2023.