Kyrsten Lea Sinema(/ˈkɪərstən ˈsɪnəmə/; born July 12, 1976) is an American politician serving as the seniorUnited States Senatorfrom Arizonasince 2019. A member of the Democratic Party, she served as the U.S. Representativefrom Arizona’s 9th congressional districtfrom 2013 to 2019. She previously served in both chambers of the Arizona State Legislature, after election to the Arizona House of Representativesin 2004 and the Arizona Senatein 2010.
Sinema began her political career as an activist for the Green Partybefore joining the Arizona Democratic Partyin 2004. In the 2012 electionsshe was elected to the United States House of Representatives, becoming the first openly bisexual personand second openly LGBT woman(after Tammy Baldwinof Wisconsin) elected to the United States Congress.
After her election to Congress, she shifted toward the political center, joining the conservative Democratic Blue Dog Coalitionand the bipartisan Problem Solvers Caucusand amassing a center-left to centrist voting record. Sinema worked for the adoption of the DREAM Actand campaigned against Propositions 107and 102, two voter referendumsto ban the recognition of same-sex marriageand civil unionsin Arizona.
Sinema won the 2018 United States Senate election in Arizonato replace retiring Senator Jeff Flake, defeating Republicannominee Martha McSally. The outcome of the election made Sinema the first openly bisexual personand second openly LGBT person(after Tammy Baldwinof Wisconsin) elected to the United States Senate, as well as the first woman to represent Arizona in the United States Senate. Sinema is also the first Democrat elected to represent Arizona in the United States Senate since Dennis DeConcini, who held this seat until 1995. She became Arizona’s senior senator immediately upon taking office, making her the most junior senior senator.