Trump, who takes office on Jan. 20, said he would impose a 25% tariff on imports from Canada and Mexico until they clamped down on drugs, particularly fentanyl, and migrants crossing the border, in a move that would appear to violate a free-trade deal.

During President-elect Donald Trump’s first term, America launched an all-out trade war with China to boost US manufacturing, secure US national security interests and resolve what Trump believed was an extremely out-of-balance trade relationship.

The president-elect said that he would impose the across-the-board tariffs on Day 1 and that they would stay in place until Canada, Mexico and China halted the flow of drugs and migrants.