Vast majority of large U.S. fentanyl seizures happen along Mexican border, report finds

Almost all large seizures of illicit fentanyl in the United States occur along the southern border with Mexico, according to a new report that casts more doubt on the White House’s claim that the drug is “pouring” into the U.S. from Canada.

U.S. President Donald Trump has cited the fentanyl crisis as a legal rationale to invoke emergency economic powers and impose tariffs on imports from Canada. But a Manhattan Institute report by Jonathan Caulkins and Bishu Giri of Carnegie Mellon University concludes that such levies, regardless of merits or drawbacks, cannot be justified as part of a pragmatic and data-informed response to the threat of illicit drugs in the U.S.