State
(class) |
Vacator |
Reason for change |
Successor |
Date of successor's
formal installation |
New Hampshire
(3) |
Vacant |
Disputed election. Norris Cotton appointed to seat until special election resolved dispute. |
Norris Cotton
(R) |
August 8, 1975 |
New Hampshire
(3) |
Norris Cotton
(R) |
Successor elected September 18, 1975 |
John A. Durkin
(D) |
September 18, 1975 |
Michigan
(1) |
Philip Hart
(D) |
Died December 26, 1976 |
Donald W. Riegle, Jr.
(D) |
December 27, 1976 |
Missouri
(1) |
Stuart Symington
(D) |
Resigned December 27, 1976 |
John Danforth
(R) |
December 27, 1976 |
Nebraska
(1) |
Roman Hruska
(R) |
Resigned December 27, 1976 |
Edward Zorinsky
(D) |
December 28, 1976 |
Ohio
(1) |
Robert Taft, Jr.
(R) |
Resigned December 28, 1976 |
Vacant |
Not filled this term |
Rhode Island
(1) |
John O. Pastore
(D) |
Resigned December 28, 1976 |
John Chafee
(R) |
December 29, 1976 |
Minnesota
(2) |
Walter Mondale
(DFL) |
Resigned December 30, 1976 after being elected Vice-President of the United States. |
Wendell Anderson
(DFL) |
December 30, 1976 |
California
(1) |
John V. Tunney
(D) |
Resigned January 1, 1977 |
S. I. Hayakawa
(R) |
January 2, 1977 |