When US President Donald Trump announced sweeping tariffs against Canada, Mexico and China on Saturday, he cited that “the extraordinary threat posed by illegal aliens and drugs including deadly fentanyl” posed a national emergency that required tariffs be slapped until the crisis was abated.

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.

Drug policy researcher Jonathan Caulkins said there were 21 large fentanyl seizures at the Mexican border for every one along the Canadian border.

Efforts to break up crime syndicates precede threats from the U.S. president, investigators taking down drug labs in Western Canada say.

President Donald Trump will hold off tariffs against Canada and Mexico as negations come. FOX 9's Soyoung Kim has the latest.

President Donald Trump has threatened to impose punitive tariffs on the European Union, citing trade deficits in auto and farm products. Despite similar average tariffs between the US and EU, disparities in specific items like cars and food remain a sticking point,