Sarah Kelly Elfreth is an American politician who is serving as the U.S. representative for Maryland's 3rd congressional district since 2025. She previously served as a member of the Maryland Senate representing the 30th district from 2019 to 2025. Elfreth is a member of the Democratic Party. Born and raised in New Jersey, Elfreth moved to Maryland to study political science at Towson University and later earn a MPP from Johns Hopkins University. She became involved with Maryland politics while attending Towson, during which she was appointed by Governor Martin O'Malley to be a student member of the University System of Maryland Board of Regents. After graduating, Elfreth moved to Annapolis, where she successfully ran for the Maryland Senate in 2018, defeating Republican challenger and former state delegate Ron George in the general election. She was reelected in 2022. Her district encompassed the lower half of Anne Arundel County, including the state capital of Annapolis. Elfreth won the 22-way Democratic primary in the U.S. House of Representatives election in Maryland's 3rd congressional district and then defeated the Republican nominee in the general election. She was sworn in on January 3, 2025.