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.

President-elect Donald Trump said he would impose the import tariffs — 25 percent for Canada and Mexico and 10 percent for China — as soon as he takes office.

President-elect Donald Trump on Monday promised massive hikes in tariffs on goods coming from Mexico, Canada and China starting on the first day of his administration, a policy that could sharply increase costs for American businesses and consumers.

Mexico said Wednesday the United States will be shooting itself in the foot if President-elect Donald Trump implements his threats to impose 25-percent tariffs on Mexican imports.He said he would charge 25 percent tariffs on Mexican and Canadian imports and 10 percent on Chinese goods "above any additional tariffs" on the world's second-biggest economy.

Mexico and Canada are the United States’ top two trading partners, accounting for nearly 30% of trade volumes.

President-elect Trump’s pledge to impose tariffs on Mexico and Canada threatens to upend decades of North American integration, a bumpy process that’s recast the two U.S. neighbors as providers of raw and finished goods for the world’s biggest economy.