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.

Claudia Sheinbaum and Donald Trump posted about the deal on social media. Sheinbaum said she’d be sending the National Guard to the U.S. border to prevent drug trafficking.