Last mentioned: Mar 7, 2026
CUSMA Joint Review
The formal window for the three nations to review and potentially extend the trade agreement begins.
Washington Summit
Canada's new trade team meets with Greer to 'steady' the relationship and discuss the upcoming CUSMA review.
Geneva Summit
Scheduled meeting between Iranian officials and U.S. envoy Steve Witkoff.
USTR Policy Confirmation
Jamieson Greer confirms China tariffs will stay at 35-50% to ensure market continuity.
Greer Announcement
USTR Jamieson Greer confirms the 15% tariff plan in Bloomberg interview.
Parliament Vote
Scheduled vote for the EU-US trade deal in the European Parliament (now in doubt).
SCOTUS Ruling
Supreme Court invalidates the use of IEEPA for broad tariff implementation.
15% Global Tariff
President Trump announces a universal 15% levy on all foreign imports.
EU Response
European Commission demands the US honor the existing Joint Statement trade deal.
Tariff Hike
President Trump announces a 15% global import duty despite the court ruling.
Tariff Announcement
Trump announces 10% global tariff on Truth Social from the Oval Office.
Executive Order Signed
New tariffs signed under Section 122 of the Trade Act of 1974.
Draft Proposal Announced
Iranian FM Araghchi signals a nuclear deal draft will be ready within days.
SCOTUS Ruling
US Supreme Court rules much of the administration's tariff campaign under IEEPA is illegal.
Supreme Court Ruling
SC rules 6-3 that IEEPA-based tariffs overstepped executive authority.
SCOTUS Ruling
Supreme Court blocks the administration's use of IEEPA for sweeping trade tariffs.
Implementation
Tariffs expected to take effect at U.S. ports of entry.
Greer's Public Criticism
USTR Jamieson Greer highlights Canadian trade barriers on Fox Business, signaling a tough stance ahead of reviews.
USMCA Review
Scheduled review of the North American trade deal where 'gaps' will be formally addressed.
Negotiation Freeze
President Trump halts formal trade talks with Canada following a dispute over a tariff-related advertisement.
A high-level Canadian trade delegation met with U.S. Trade Representative Jamieson Greer in Washington to restart stalled discussions regarding the CUSMA trade pact. The meeting signals a potential thaw in relations following a year-long freeze by the Trump administration, though significant friction remains over market access and trade barriers.
US Trade Representative Jamieson Greer confirmed that tariffs on Chinese goods will remain between 35% and 50% despite a Supreme Court ruling against the administration's previous legal justification. The White House is now pivoting to Section 122 of the Trade Act of 1974 to implement a 15% global tariff floor, seeking continuity ahead of a summit between President Trump and President Xi Jinping.
US Trade Representative Jamieson Greer has signaled a significant escalation in trade policy, indicating that tariff rates for specific nations will rise to 15% or higher. This move marks a pivot toward more aggressive protectionist measures aimed at rebalancing trade deficits and protecting domestic industries.
US Trade Representative Jamieson Greer confirmed a forthcoming supplemental proclamation to raise specific tariffs to 15%. The move aims to close loopholes in the USMCA and pressure European and British partners to adhere to trade commitments.
The U.S. Supreme Court has invalidated the administration's use of emergency powers to impose broad trade tariffs, prompting President Trump to immediately announce a 15% global tariff. Simultaneously, high-stakes nuclear negotiations with Iran are reaching a critical juncture in Geneva against the backdrop of a massive U.S. military buildup.
The European Commission is urging the United States to uphold a bilateral trade agreement following President Trump's decision to implement a 15% global import duty. This move comes immediately after a US Supreme Court ruling against the administration's use of emergency powers for tariffs, creating significant volatility for international supply chains.
US Trade Representative Jamieson Greer confirmed that specific bilateral trade agreements remain in effect despite a recent Supreme Court ruling against the administration's broader tariff policies. This provides a critical layer of certainty for supply chain managers navigating a volatile regulatory landscape.
President Trump has signed an executive order imposing a blanket 10% global tariff on all imports, pivoting to Section 122 of U.S. trade law after the Supreme Court curtailed his previous authority. The move, effective almost immediately, creates a 150-day window of heightened costs for all international supply chains without the possibility of country-specific exemptions.
This page surfaces every story mentioning Jamieson Greer across our supply chain coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running supply chain beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where Jamieson Greer was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |