Interactive research and focused timelines that distinguish measures in force from measures that ended or have only been announced.
Explore the sequence, tariff-rate measures, customs revenue, legal authorities, partner exposure, trade diversion, incidence, retaliation, economic outcomes, and forward calendar through August 27, 2026.
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A verified chronology of the U.S.–Canada tariff conflict, updated after new 50% U.S. duties took effect and Canada published rate-for-rate countertariffs scheduled for September 8.
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A source-backed account of how the U.S.–Mexico tariff confrontation evolved, updated with Mexico's August 24 description of the current tariff structure and continuing negotiations.
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A source-linked chronology of the U.S.–China tariff confrontation, from the 2025 emergency duties and reciprocal escalation to the current Section 301 baseline, suspended truce measures, and continuing technology and supply-chain tensions.
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