qnli question: Which Republican presidential candidate did Tennessee support in 1920? sentence: 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.