Last mentioned: Mar 7, 2026
Statutory Deadline
The 150-day window for Section 122 tariffs expires unless extended by Congress.
Expected Proclamation
President Trump expected to sign a formal proclamation implementing the 15% global tariff rate.
Greer Clarification
USTR Jamieson Greer confirms China tariffs will stay at 35-50% for continuity.
Expected Implementation
Tariffs expected to be collected at ports of entry almost immediately.
Executive Order Signed
Trump signs 10% global tariff using Section 122 of U.S. trade law.
Trump Response
President announces 'great alternatives' to IEEPA, targeting Section 122 for a 10-15% global tariff.
SCOTUS Ruling
Supreme Court strikes down previous tariff authority in a 6-3 decision.
Supreme Court Ruling
Justices block sweeping tariffs imposed under IEEPA, citing executive overreach.
Parliamentary Review
Bernd Lange calls for a hold on legislative work regarding the U.S. trade agreement.
EU Statement
European Commission issues a formal demand for the U.S. to honor the 'Joint Statement' trade deal.
Tariff Hike
President Trump announces a 15% global duty on imports despite the court ruling.
Diplomatic Outreach
Maros Sefcovic speaks with Jamieson Greer and Howard Lutnick to seek clarity.
SCOTUS Ruling
U.S. Supreme Court rules much of the administration's international tariff campaign is illegal under IEEPA.
The Trump administration will hold China-specific tariffs steady between 35% and 50% despite a Supreme Court ruling striking down previous trade levies. USTR Jamieson Greer confirmed the pivot to Section 122 of the Trade Act of 1974 to maintain trade pressure ahead of a critical summit with President Xi Jinping.
US Trade Representative Jamieson Greer announced a forthcoming supplemental proclamation from President Trump to raise tariffs to 15% where appropriate. The move targets gaps in the USMCA and pressures the EU and UK to adhere to existing trade commitments.
The European Commission has called on the United States to uphold its existing trade agreements following President Trump’s decision to implement a 15% global import duty. This move, occurring immediately after a Supreme Court ruling against the administration’s tariff authority, has injected significant volatility into transatlantic trade relations and global supply chains.
President Trump has signed an executive order imposing a 10% global tariff on all imports, bypassing a restrictive Supreme Court ruling by utilizing Section 122 of U.S. trade law. The move creates an immediate 150-day window of increased costs for global supply chains, requiring Congressional approval for any long-term extension.
This page surfaces every story mentioning Jamieson Greer across our startup 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 startup 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. |