"But the country began abandoning them when it created a federal income tax in 1913, the president says. Then, “in 1929, it all came to a very abrupt end with the Great Depression. And it would have never happened if they had stayed with the tariff policy,” Trump said in announcing his tariff plan last week.
Referring to Smoot-Hawley, he added, “They tried to bring back tariffs to save our country, but it was gone. It was gone. It was too late. Nothing could have been done — took years and years to get out of that depression.”
"Smoot-Hawley raised import tariffs by an average of 20% on thousands of goods, causing many top U.S. trading partners to retaliate. International cooperation on non-trade issues also declined, including on defense matters, helping clear the way for the rise of Hitler, Richardson said.
“There were some industries where they made profits,” Richardson said of Smoot-Hawley. “But overall, people in the U.S. and people around the world were losers.”
U.S. manufacturers saw foreign markets for their goods evaporate and output and consumer spending sank still further. Hawley lost the 1932 Oregon Republican primary in his district, and Smoot was defeated in November, as Democrat Franklin D. Roosevelt trounced Hoover for the presidency."