Leslie "Les" Aspin served as Secretary of Defense during the Bill Clinton/Clinton administration. Before assuming office, Aspin "had represented Wisconsin's First Congressional District in the House of Representatives since 1971. Aspin was born in Milwaukee, Wisconsin, on 21 July 1938 and attended public schools there. His academic credentials included a B.A. from Yale University (1960), an M.A. from Oxford University (1962), where (like the new president) he was a Rhodes Scholar, and a Ph.D. in economics from the Massachusetts Institute of Technology (1965). As an officer in the U.S. Army from 1966 to 1968, he served as a systems analyst in the Pentagon under Secretary of Defense Robert Strange McNamara. Before his election as a Democrat to Congress in 1970, Aspin had been active in Wisconsin politics and had taught economics at Marquette University."