Casten, Sean

Sean Casten is a U.S. Representative from Illinois's 6th congressional district, which encompasses southwestern Chicago and its inner suburbs including Downers Grove, Wheaton, Lisle, Orland Park, and Western Springs. He is a member of the Democratic Party. Casten won his seat in the 2022 general election, defeating Republican Keith Pekau after prevailing in a competitive Democratic primary against fellow Democrat Marie Newman.

Before entering Congress, Casten built a career in the energy sector focused on sustainability and efficiency. He worked as a consultant at Arthur D. Little analyzing fuel chains for chemical engineering projects. From 2000 to 2007, he served as president and CEO of Turbosteam Corporation, which converted power plant emissions into usable energy. In 2007, he co-founded Recycled Energy Development with his father, focusing on capturing and converting wasted heat into electricity. He also served as founding chairman of the Northeast CHP Initiative and helped develop the Regional Greenhouse Gas Initiative, a market-based emissions reduction program in the northeastern United States.

In Congress, Casten serves on the House Committee on Financial Services, including its subcommittees on Capital Markets and Financial Institutions, as well as the National Security, Illicit Finance, and International Financial Institutions subcommittee. He also sits on the Joint Economic Committee. His legislative work reflects both his professional background and district interests, with sponsored bills addressing energy costs, financial regulation, and clean energy policy.