Muskie, Edmund S.

Senate — 1959–1961

Senate — 1961–1963

Senate — 1963–1965

Senate — 1965–1967

Senate — 1967–1969

Senate — 1969–1971

Senate — 1971–1973

Senate — 1973–1975

Senate — 1975–1977

Senate — 1977–1979

Senate — 1979–1981