This is the first of a three-part series about the USMCA joint review process, focusing on China, Mexico, and competing visions of a “worker-centered” trade policy. Part one introduces the USMCA joint review process and explores how US trade policy would likely operate during Trump’s second term. Part two outlines some of the major trade issues that will be on the table during joint review, focusing on the Mexico-US relationship, and anticipates Harris’s likely approach to trade policy. Part three offers a critique of the worker-centered trade policy developed under the Biden administration, presents an alternative, and suggests new avenues for multi-stakeholder participation that Harris’s approach might create.