Martha Marx is an American politician serving as the Democratic and Working Families-endorsed state senator for Connecticut's 20th District, representing New London, Salem, Bozrah, East Lyme, Old Lyme, Waterford, and parts of Old Saybrook and Montville. Born in 1963 in Waterford, she took office in January 2023 after winning election in 2022, having previously lost bids for the seat in 2018 and 2020. Between 2018 and 2026 she has contested multiple elections, with two wins and five losses overall.