USMCA Review Begins With Public Support — But Tough Negotiations Ahead

The trade agreement binding the United States, Canada, and Mexico officially entered a review period on July 1, 2026. This moment was written into the original USMCA deal as a scheduled checkpoint: a chance for all three countries to decide whether to keep the agreement as-is, renegotiate its terms, or let it expire in 2036. Think of it as a built-in safety valve—designed to let governments revisit the deal without triggering an outright crisis.

One clear signal enters this review: the public backs it. A Chicago Council on Global Affairs survey released June 26 found that majorities of Americans, Canadians, and Mexicans—including opposition voters in each country—want USMCA to continue. This cross-party support is uncommon in trade politics. It gives negotiators some political breathing room. But agreement on keeping the deal doesn't mean agreement on its details. All three governments have flagged specific disputes: rules for automobiles, dairy trade, digital commerce, and how to enforce labor standards.

One number stands out on the U.S. side. In an April poll of American voters, Americans expressed more trust in Canada's judgment on trade negotiations than in their own government's. That asymmetry matters. When voters doubt their own trade negotiators, governments lose negotiating flexibility at home.

What Actually Happens Now

The July 1 date doesn't produce immediate results. If any country raises concerns—and they will—negotiations continue under a deadline before 2036. The review is a trigger, not a finish line. Each government must now formally state its position: extend USMCA unchanged, propose changes, or signal it won't renew. Walking away would be expensive. Without USMCA, tariffs would revert to World Trade Organization baseline rates, and supply chains built around USMCA's trade preferences over the past six years would need restructuring.

Canada comes into this review under Carney's government with friction already present in the broader Canada-U.S. relationship, including disputes over the Alberta pipeline. Canada's options outside USMCA are limited. It has trade agreements with the EU and is part of the trans-Pacific trade bloc, but neither replaces the U.S. market—which receives roughly three-quarters of Canadian exports.

Mexico faces its own pressures. The agreement includes a "Rapid Response Mechanism" for checking whether Mexico enforces labor standards properly, and reviews have been active. The U.S. has also raised concerns about Chinese-owned factories in Mexico that produce goods for non-USMCA companies, potentially circumventing the agreement's intent. These issues remain unresolved as the review begins.

Why This Matters Beyond Trade

USMCA covers roughly $1.3 trillion in annual trilateral trade. Over the past six years, its rules about where products must be made and what percentage of parts must come from North America have shaped investment decisions across auto manufacturing, semiconductors, and agriculture. Weakening these rules would force companies to reconsider where to build factories—decisions that have already been locked in.

The public opinion data creates what might be called a political floor. If voters in all three countries support keeping USMCA, their governments will find it harder to abandon or radically change it. The risk of failure is now shared across all three parties rather than landing on one government's shoulders. Historically, that distribution of risk makes compromise more likely than collapse.

Experts increasingly view USMCA differently than when it was first negotiated. The original agreement was framed mainly as trade liberalization—reducing barriers to sell goods across borders. Today's debate centers on something broader: using the agreement as a foundation for deeper economic coordination on supply chain reliability, access to critical minerals like lithium and cobalt, and defense industrial capacity. That shift reflects real geopolitical concerns, particularly around competition with China.

The real test ahead is whether the three governments can resolve specific disputes—steel tariffs, dairy access, digital trade rules—while maintaining the strategic consensus that supports the agreement overall. Public support provides some insurance against outright failure, but the detailed negotiations remain genuinely difficult. How they navigate this period will shape North American manufacturing and trade relationships for the next decade.