MAJORITY

• 0JOHN LITTLE MCCLELLAN

  [D] AR, United States
• 0Henry Martin Jackson

  [D] WA, United States
• 2SAMUEL JAMES ERVIN

  [D] NC, United States
• 3Hubert H. Humphrey Jr.

  [D] MN, United States

  Ended 12/29/1964
• 0ERNEST GRUENING

  [D] AK, United States
• 4Edmund Muskie

  [D] ME, United States
• 462Claiborne Pell

  [D] RI, United States
• 0THOMAS MCINTYRE

  [D] NH, United States

  Ended 08/10/1964
• 5Abraham A. Ribicoff

  [D] CT, United States
• 0DANIEL BAUGH BREWSTER

  [D] MD, United States

MINORITY

• 0Karl EARL Mundt

  [R] SD, United States

  Ended 01/15/1965
• 0CARL THOMAS CURTIS

  [R] NE, United States

  Ended 01/15/1965
• 0JACOB KOPPEL JAVITS

  [R] NY, United States

  Ended 01/15/1965
• 0JACK MILLER

  [R] IA, United States

  Ended 01/15/1965
• 0JAMES B. PEARSON

  [R] KS, United States

  Ended 01/15/1965

OTHER

• 0PIERRE SALINGER

  [D] CA, United States

  Began 08/10/1964

  Ended 12/31/1964