| Year(s) | Party | Senator | % Correct |
|---|---|---|---|
| 2007- | Republican | John Barrasso | 100%
|
| 2021- | Republican | Cynthia Lummis | 92%
|
| 1997-2021 | Republican | Mike Enzi | 69%
|
| 1979-1997 | Republican | Alan K. Simpson | 54%
|
| 1962-1967 | Republican | Milward L. Simpson | 54%
|
| 1890-1893; 1895-1929 | Republican | Francis E. Warren | 46%
|
| 1895-1917 | Republican | Clarence D. Clark | 38%
|
| 1967-1978 | Republican | Clifford P. Hansen | 38%
|
| 1995-2007 | Republican | Craig Thomas | 38%
|
| 1954 | Republican | Edward D. Crippa | 38%
|
| 1943-1949 | Republican | Edward V. Robertson | 38%
|
| 1953-1959 | Republican | Frank A. Barrett | 38%
|
| 1959-1977 | Democratic | Gale W. McGee | 38%
|
| 1937-1943 | Democratic | Henry H. Schwartz | 38%
|
| 1917-1933 | Democratic | John B. Kendrick | 38%
|
| 1961-1962 | Democratic | John J. Hickey | 38%
|
| 1933-1953 | Democratic | Joseph C. O'Mahoney | 38%
|
| 1954-1961 | Democratic | Joseph C. O'Mahoney | 38%
|
| 1890-1895 | Republican | Joseph M. Carey | 38%
|
| 1949-1954 | Democratic | Lester C. Hunt | 38%
|
| 1977-1995 | Republican | Malcolm Wallop | 38%
|
| 1929-1930 | Republican | Patrick J. Sullivan | 38%
|
| 1930-1937 | Republican | Robert D. Carey | 38%
|