MAJORITY

• 1HOWARD WALTER CANNON

  [D] NV, United States
• 461Claiborne Pell

  [D] RI, United States
• 1,644Robert C. Byrd

  [D] WV, United States
• 0James Browning Allen

  [D] AL, United States

  Ended 06/01/1978
• 0HARRISON ARLING WILLIAMS

  [D] NJ, United States
• 0Richard Clark

  [D] IA, United States

  Ended 01/03/1979

MINORITY

• 299Mark O. Hatfield

  [R] OR, United States
• 2Robert PAUL Griffin

  [R] MI, United States

  Ended 01/03/1979
• 16John Tower

  [R] TX, United States

  Ended 02/22/1977

OTHER

• 29Howard H. Baker Jr.

  [R] TN, United States

  Began 02/22/1977
• 530Wendell H. Ford

  [D] KY, United States

  Began 07/11/1978