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A whip in the United States Senate is a member of the party leadership who comes second in line after the party's floor leader.
Since 1969, the official title of the Republican Whip has been Assistant Majority Leader.
See also: United States Senate Democratic Whip.
| Term | Name | State | Comments |
|---|---|---|---|
| 1915 | James W. Wadsworth Jr. | New York | |
| 1915-1924 | Charles Curtis | Kansas | Became floor leader |
| 1924-1929 | Wesley L. Jones | Washington | |
| 1929-1933 | Simeon D. Fess | Ohio | |
| 1933-1935 | Felix Hebert | Rhode Island | |
| 1935-1944 | None (Only 17 Republicans total in Senate | ||
| 1944-1949 | Kenneth S. Wherry | Nebraska | Became floor leader |
| 1949-1957 | Leverett Saltonstall | Massachusetts | |
| 1947-1959 | Everett M. Dirksen | Illinois | Became floor leader |
| 1959-1969 | Thomas H. Kuchel | California | |
| 1969 | Hugh D. Scott Jr. | Pennsylvania | Became floor leader |
| 1969-1977 | Robert P. Griffin | Michigan | |
| 1977-1985 | Theodore F. Stevens | Alaska | |
| 1985-1995 | Alan K. Simpson | Wyoming | |
| 1995-1996 | C. Trent Lott | Mississippi | |
| 1996-2003 | Don Nickles | Oklahoma | |
| 2003-present | A. Mitchell McConnell Jr. | Kentucky |