U.S. President-elect Donald Trump said on Saturday he had a "very productive" meeting with Canadian Prime Minister Justin Trudeau in which they discussed border-related issues and other topics including trade,

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.

Canadian Prime Minister Justin Trudeau returned home Saturday after his meeting with Donald Trump without assurances the president-elect will back away from threatened tariffs on all products from the major American trading partner.