Kyrsten Sinema has served as the senior United States Senator from Arizona since January, 2019. She previously served as a Democratic member of Congress from Arizona's 9th Congressional District, and as a Democratic member of the Arizona House of Representatives, representing the 15th District. Born in Tucson, Arizona, Sinema moved to Phoenix in 1995. She attended Arizona State University where she earned a master’s degree in social work and then a Juris Doctor. She was a social worker in the Washington Elementary School District before becoming a criminal defense lawyer. In 2006 she chaired Arizona Together, the statewide campaign that defeated Proposition 107, which would have banned the recognition of same-sex marriage in Arizona.