California Business Roundtable & Jamieson Greer

California Business Roundtable: US business group that warned tariffs raise costs and urged resumption of negotiations. Represents major US corporations affected by the dispute.

Jamieson Greer: US Trade Representative who blamed Canada for the collapse and pledged further measures. Key figure in executing Trump's tariff strategy.

California Business Roundtable: The California Business Roundtable pushed for governments to strengthen and retain the USMCA, emphasizing the need for certainty for businesses.

Jamieson Greer: Jamieson Greer, as the US Trade Representative, is a key figure in the decision not to extend the USMCA and is actively involved in scheduling and leading negotiations with Mexico to push for changes to the trade agreement.