Just two days after President Trump upended North American trade by imposing 25 percent fees on all goods imported from Canada and Mexico, he announced a temporary reversal.

The president signed executive orders today offering a monthlong exemption, until April 2, for all goods covered under the U.S.-Mexico-Canada trade agreement, which includes most U.S. imports from those countries. About 10 percent of Mexico’s exports to the U.S. fall outside the U.S.M.C.A. trade agreement, according to one economist.

The president announced the decision after speaking with President Claudia Sheinbaum of Mexico. She said Trump began their call with the intention to keep tariffs in place, but changed his mind after she showed him examples of how Mexico limited the flow of fentanyl into the U.S. It’s not yet clear why he decided to pause the tariffs on Canada.

Still, the president has said that he expects to impose more tariffs on Canada and Mexico next month, when he announces what he is calling “reciprocal” tariff measures. The uncertainty led to another unsteady day on Wall Street.

In related news, many Canadian shops pulled U.S. alcohol from their shelves in response to the tariffs.

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