1928 - 1956
 |  |  |  |  |
| Hoover Republican 1928 | Smith Democrat 1928 | Roosevelt Democrat 1932/36/40/44 |
Landon Republican 1936 | Willkie Republican 1940 |
|---|---|---|---|---|
 |  |  |  |  |
| Roosevelt - Wallace Democrats 1940 | Dewey - Warren Republicans 1948 | Truman Democrat 1948 |
Eisenhower - Nixon Republican 1952/56 | Stevenson Democrat 1952/56 |
