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U.S. policy on fentanyl trafficking

U.S. policy reactions to the shift in fentanyl production and trafficking, including bilateral pressure on Mexico and constraints on precursor flows from China

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Jan 22, 2026
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What share of U.S. fentanyl supplies is traced to Mexican production versus other countries?

Most authoritative reporting and U.S. agencies describe a supply chain that has shifted: is now widely identified as the primary production and transit point for , while remains the dominant global so...