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Trump imposes steel and aluminum tariffs on the E.U., Canada and Mexico

May 31, 2018 at 2:32 p.m. EDT
President Trump waves before boarding Air Force One to depart for travel to Texas from Joint Base Andrews in Maryland on May 31. (Leah Millis/Reuters)

President Trump on Thursday imposed tariffs on imported steel and aluminum from the European Union, Canada and Mexico, triggering immediate retaliation from U.S. allies and protests from American businesses and farmers.

The tariffs — 25 percent on steel and 10 percent on aluminum — take effect at midnight Thursday, marking a major escalation of the trade war between the United States and its top trading partners.