| Years as Leader and Party | Majority Leader | % Correct |
|---|---|---|
| 2015-2021, Republican | Mitch McConnell | 90%
|
| 2021-Present, Democrat | Chuck Schumer | 70%
|
| 2007-2015, Democrat | Harry Reid | 70%
|
| 1955-1961, Democrat | Lyndon Johnson | 70%
|
| 1985-1987, 1995-1997, Republican | Bob Dole | 60%
|
| 1977-1981, Democrat | Robert Byrd | 60%
|
| 2001-2003, Democrat | Tom Daschle | 60%
|
| 1997-2001, Republican | Trent Lott | 60%
|
| 1989-1995, Democrat | George Mitchell | 40%
|
| 1925-1928, Republican | Charles Curtis | 30%
|
| 1981-1985, Republican | Howard Baker | 30%
|
| 1933-1937, Democrat | Joseph Robinson | 30%
|
| 1961-1977, Democrat | Mike Mansfield | 30%
|
| 2003-2007, Republican | William Frist | 30%
|
| 1951-1953, Democrat | Ernest McFarland | 20%
|
| 1953, Democrat | Robert Taft | 20%
|
| 194-1949, Republican | Wallace White | 20%
|
| 1953-1955, Democrat | William Knowland | 20%
|
| 1929-1933, Republican | James Watson | 10%
|
| 1949-1951, Democrat | Scott Lucas | 10%
|
| 1937-1947, Democrat | Alben Barkely | 0%
|