Tax rates, yes, but tariffs never worked. Including when Bush/Obama/Trump tried them. Or at the start of the Great Depression.
History lesson. Smoot Hawley was signed into law in 1930 and didn’t really take effect until the next year, 1931 almost 2 years AFTER the start of the Great Depression.
The Smoot Hawley Tariff of 1930 was virtually the same as the Fordney–McCumber Tariff of 1922 that preceded it.