President Donald Trump on Sunday said there may be "some pain," yet the "results will be spectacular," one day after signing executive orders on tariffs against Canada, Mexico and China linked to the fentanyl crisis.

China's government on Sunday denounced the Trump administration's imposition of a long-threatened 10% tariff on Chinese imports while leaving the door open for talks with the U.S. that could avoid a deepening conflict.

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.