Summer Lynn Lee (born November 26, 1987) is an American politician and community organizer serving as the U.S. representative for Pennsylvania's 12th congressional district since 2023. A member of the Democratic Party, Lee served as a member of the Pennsylvania House of Representatives for the 34th district from 2019 to 2022. With the support of the local chapter of the Democratic Socialists of America, she defeated incumbent Paul Costa in the 2018 Democratic primary election with over 67% of th ...