Trump’s tariffs on Canadian steel and aluminum, autos and goods not covered by the U.S.-Mexico-Canada trade agreement have upended the status quo. He has threatened to raise some of those tariffs to 35 percent by Aug. 1. Canada sends more than 75 percent of its exports to the U.S.

President Donald Trump announced a trade agreement with Japan on Tuesday, making it the largest U.S. trade partner to broker an accord as the White House threatens to impose tariffs on dozens of countries within days.