U.S. import taxes before the WWII era were pretty high, ranging from 20% to 50%, sometimes even reaching 60%, Irwin said. They have been “very low” since 1950 or so, he said.
The average duty on goods subject to a tariff was about 2% to 4% in the 2010s before Trump’s first term, Mitchener said.
“That’s what President Trump is trying to overturn, this sort of low period of tariffs we’ve had since World War II,” Irwin said.
Before 1934, Congress — not presidents — had power over tariff rates and negotiations, said Andrew Wender Cohen, a history professor at Syracuse University.
But Democrats — then known as the political party of free trade — had an enormous majority around the New Deal era and passed the Reciprocal Trade Agreements Act of 1934, granting the president the right to negotiate tariffs in certain cases, Cohen said.
“That’s when the president gains a much more substantial authority,” Cohen said.
That power accelerated after 1948 during the “transformation of the whole global economic order,” he said.
And there is more...for example: (excerpt)
Many presidents have used tariffs. For example, George W. Bush, Ronald Reagan and Richard Nixon applied tariffs to protect the U.S. steel industry, as Trump did in his first term, Irwin said.
“What’s unusual about Trump is, he’s not just picking out particular industries that he thinks are of strategic importance, but he’s blocking imports across the board almost with some of these countries,” Irwin said.
Trump imposed a 10% additional tariff on all Chinese goods and threatened a 25% tariff on imports from Canada and Mexico.
“No president in recent memory has really used tariffs across the board or in a broad-brush way to achieve various objectives,” Irwin said. “They’ve sort of adhered to the rule that we belong to the WTO. That means we keep our tariffs low as long as other countries keep their tariffs low.”
https://www.cnbc.com/2025/02/06/how-the-us-has-used-tariffs-through-history-and-why-trump-is-different.html
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