Marcus J. Molinaro (born October 8, 1975) is an American politician. A member of the Republican Party, Molinaro is the U.S. representative-elect for New York's 19th congressional district, and is currently serving his third term as county executive of Dutchess County, New York. Molinaro was previously a member of the Dutchess County Legislature and the New York State Assembly before being elected county executive for the first time in 2011. He was re-elected county executive in 2015 and 2019. Molinaro is also a former Mayor of Tivoli; when he became mayor at age 19, he was the youngest mayor in the United States.