Stewart Boss is a Senior Advisor for the DSCC, guiding candidates and campaigns to win key Senate races around the country in 2026. Stewart previously worked as Campaign Manager for Senator Jacky Rosen’s successful reelection in 2024 and was named the AAPC’s Statewide Campaign Manager of the Year for overseeing her narrow victory in a state that Trump won. A longtime communications operative on Senate campaigns and Capitol Hill, Stewart previously served as National Press Secretary and Senior Communications Strategist for the DSCC, including in 2020 when Democrats defied the odds to flip the Senate and take back the majority.