Marilyn N. Musgrave (born January 27, 1949), American politician, has been a Republican member of the United States House of Representatives since 2003, representing the 4th District of Colorado (map). The district takes up most of eastern Colorado outside the Denver and Colorado Springs-Pueblo metropolitan areas, but most of its vote is cast in Fort Collins and Greeley. She is best known nationally as the main sponsor of the Federal Marriage Amendment. Musgrave is a member of the U.S. House Committee on Agriculture, the U.S. House Committee on Education and the Workforce, and the U.S. House Committee on Small Business.