After disenfranchisement of blacks, the GOP in Tennessee was historically a sectional party supported by whites only in the eastern part of the state. In the 20th century, except for two nationwide Republican landslides of the 1920s (in 1920, when Tennessee narrowly supported Warren G. Harding over Ohio Governor James Cox, and in 1928, when it more decisively voted for Herbert Hoover over New York Governor Al Smith, a Catholic), the state was part of the Democratic Solid South until the 1950s. In that postwar decade, it twice voted for Republican Dwight D. Eisenhower, former Allied Commander of the Armed Forces during World War II. Since then, more of the state's voters have shifted to supporting Republicans, and Democratic presidential candidates have carried Tennessee only four times.

Which Republican presidential candidate did Tennessee support in 1920?