President Donald Trump's new tariff orders against Canada, Mexico and China all contain clauses suspending a duty-free exemption for low-value shipments below $800 that is widely seen as a loophole that has allowed shipments of fentanyl and its precursor chemicals into the United States.

The White House says fentanyl smuggled to the U.S. justifies tariffs against Canada, China and Mexico. But fentanyl deaths and smuggling have been dropping fast — and Canada plays almost no role.

President Trump has threatened to impose tariffs on Canada over drug trafficking, equating it with Mexico. U.S. government reports do not support the claim.

The Trump administration is following through on its promise to impose 25% tariffs on goods imported from Mexico and Canada and raise tariffs on Chinese goods on Saturday.

WASHINGTON - President Donald Trump said on Feb 2 the sweeping tariffs that he has imposed on Mexico, Canada and China may cause "some pain" for Americans, as Wall Street and the largest US trading partners signaled hope that the trade war would not last long.

Amid warnings of price increases, Canada moved quickly to retaliate, China said it had planned countermeasures and Mexico said it would soon unveil its response.

Follow the latest news on the tariffs and other Trump administration moves. Leaders for Canada, Mexico, and China, including Justin Trudeau, respond after President Donald Trump imposes tariffs.

The move likely will trigger retaliation and risk igniting a trade war that could cause broad economic disruption for all countries involved.

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.

On Saturday, Trump signed an order imposing substantial tariffs on imports from Canada, Mexico, and China. In response, China’s commerce ministry announced it would file a complaint with the World Trade Organization and “take corresponding countermeasures,” though details were not provided.