MAJORITY

• 0Josepeh "Lister" L. Hill

  [D] AL, United States
• 0PATRICK VINCENT MCNAMARA

  [D] MI, United States

  Ended 04/30/1966
• 1Wayne L. Morse

  [D] OR, United States
• 2Ralph Webster Yarborough

  [D] TX, United States
• 0JOSEPH SILL CLARK

  [D] PA, United States
• 2Jennings Randolph

  [D] WV, United States
• 0HARRISON ARLING WILLIAMS

  [D] NJ, United States
• 461Claiborne Pell

  [D] RI, United States
• 2,208Edward "Ted" M. Kennedy

  [D] MA, United States
• 13Gaylord Nelson

  [D] WI, United States
• 3Robert F. Kennedy

  [D] NY, United States

MINORITY

• 0JACOB KOPPEL JAVITS

  [R] NY, United States

  Began 01/15/1965

  Ended 01/16/1967
• 0WINSTON LEWIS PROUTY

  [R] VT, United States

  Began 01/15/1965

  Ended 01/16/1967
• 2PETER H. DOMENICI

  [R] CO, United States

  Began 01/15/1965

  Ended 01/16/1967
• 0GEORGE MURPHY

  [R] CA, United States

  Began 01/15/1965

  Ended 01/16/1967
• 0PAUL J. FANNIN

  [R] AZ, United States

  Began 01/15/1965

  Ended 01/16/1967
• 2Robert PAUL Griffin

  [R] MI, United States

  Began 05/17/1966

  Ended 01/16/1967