A day after levying steep new tariffs on Mexico, Canada and China, President Trump acknowledged what economists, members of Congress and even some of his own aides — in their previous lives — have been saying all along: Americans may find themselves paying the costs.

Critics warn his posture could embolden China to expand ties to Latin American countries, and Russia to continue advances in Ukraine.

Chrystia Freeland, former Canadian deputy prime minister, said on Sunday that President Trump’s decision to impose 25 percent tariffs on Canadian goods is a “betrayal” and an “act of economic warfare.

China's sharpest pushback on Sunday was over fentanyl, an area where the Biden administration had also been urging Beijing to crack down on shipments.

President Donald Trump says Americans could feel “some pain” from the emerging trade war triggered by his tariffs against Canada, Mexico and China

Prime Minister Justin Trudeau says Canada is ready to respond with 25 percent tariffs against C$155 billion worth of American goods.

Tariffs on goods imported from the U.S.'s three largest trade partners could upend industries from autos to consumer goods to energy. Executives have been able to deflect question