United States Senate Republican Conference Chairman
The Republican caucus of the United States Senate chooses a conference chairman. The office of conference chairman was created in the mid-19th century with the founding of the Republican party. The office of party floor leader was not created until 1925. Until 1945, the Senate's Republican leader was also the conference chairman.
List of Republican Conference Chairmen in the United States Senate
| Dates | Name | State | Notes |
|---|---|---|---|
| -1862 | John P. Hale | New Hampshire | |
| 1862-1884 | Henry B. Anthony | Rhode Island | |
| 1884-1885 | John Sherman | Ohio | |
| 1885-1891 | George Edmunds | Vermont | |
| 1891-1897 | John Sherman | Ohio | |
| 1897-1908 | William B. Allison | Iowa | |
| 1908-1911 | Eugene Hale | Maine | |
| 1911-1913 | Shelby Cullom | Illinois | |
| 1913-1918 | Jacob H. Gallinger | New Hampshire | |
| 1918-1924 | Henry Cabot Lodge I | Massachusetts | |
| 1924-1929 | Charles Curtis | Kansas | Also Republican floor leader from 1925 |
| 1929-1933 | James E. Watson | Indiana | Also Republican floor leader |
| 1933-1944 | Charles L. McNary | Oregon | Also Republican floor leader |
| 1945-1946 | Arthur H. Vandenberg | Michigan | |
| 1947-1956 | Eugene D. Millikin | Colorado | |
| 1957-1966 | Leverett Saltonstall | Massachusetts | |
| 1967-1972 | Margaret Chase Smith | Maine | |
| 1973-1974 | Norris Cotton | New Hampshire | |
| 1975-1978 | Carl T. Curtis | Nebraska | |
| 1979-1980 | Robert Packwood | Oregon | |
| 1981-1984 | James A. McClure | Idaho | |
| 1985-1990 | John Chafee | Rhode Island | |
| 1991-1996 | W. Thad Cochran | Mississippi | |
| 1997-2001 | Cornelius McGillicuddy III | Florida | |
| 2001-present | Richard J. Santorum | Pennsylvania |