The trade agreement that once promised lasting stability to North American commerce is looking increasingly fragile. On July 1, 2026, the United States, Mexico, and Canada will officially begin the first mandatory joint review of the United States-Mexico-Canada Agreement (USMCA). Signed in 2020 to replace the quarter-century-old North American Free Trade Agreement (NAFTA), the pact governs an estimated $2 trillion in annual trilateral trade, supporting over 56 million jobs across the continent. Yet, what was once expected to be a routine administrative assessment has turned into a high-stakes geopolitical battle that threatens the future of North American economic integration.
Rather than agreeing to a clean extension of the deal for another sixteen years, the Trump administration has signaled that it will decline the extension. President Donald Trump has publicly questioned the value of the trilateral pact, asking advisors why the United States should not withdraw from the agreement entirely. This aggressive stance, coupled with a wave of punitive tariffs and a demand for deep concessions from Canada and Mexico, has thrown the trade pact into serious jeopardy, leaving businesses and investors across the continent bracing for a prolonged period of trade volatility.
The Mechanics of the Joint Review and the Sunset Clause
The current friction is a direct result of a unique mechanism built into the USMCA: Article 34.7, commonly known as the joint review or sunset clause. When negotiators drafted the USMCA, the United States insisted on a provision that would force the three nations to periodically re-evaluate the agreement. This corrected a perceived flaw in NAFTA, which had no formal mechanism for updates and struggled to adapt to modern economic realities like e-commerce, digital trade, and artificial intelligence.
The joint review process requires the three governments to meet on the sixth anniversary of the agreement’s entry into force to decide its future. This process can lead to three distinct outcomes:
- Extension: All three nations agree to renew the agreement, which extends its lifespan for an additional sixteen years and schedules the next joint review for 2032.
- Non-Renewal: If any country declines to extend the deal, the USMCA does not immediately expire. Instead, it enters a decade-long period of mandatory annual joint reviews. This gives the parties until the ultimate sunset date in 2036 to resolve their disputes and approve an extension.
- Withdrawal: Any party can choose to withdraw from the pact entirely by providing a six-month written notice, which would effectively dissolve the free trade zone and resurrect standard import tariffs.
By moving to reject the sixteen-year extension, the Trump administration is deliberately pushing the USMCA into the annual review cycle. While this keeps the treaty alive in the short term, the shift to yearly assessments destroys the long-term business certainty that the agreement was supposed to provide. Companies planning multi-billion-dollar investments in factories, supply chains, and infrastructure across North America will face a cloud of regulatory and tariff uncertainty every single year between now and 2036.
The Trump Administration’s Bilateral Playbook and Aggressive Tariffs
The move to block the USMCA’s extension reflects a broader shift in U.S. trade policy. The Trump administration has consistently expressed a preference for bilateral, country-to-country trade deals over large trilateral pacts, believing that one-on-one negotiations give Washington greater leverage to extract concessions. U.S. Trade Representative Jamieson Greer stated that renewing the USMCA in its current form is not in the national interest, indicating that the administration wants to negotiate separately with Canada and Mexico.
To force its neighbors to the negotiating table, Washington has turned to aggressive tariff policies. In early 2025, the administration implemented a 25% tariff on all non-compliant imports from Mexico and Canada. This was followed by a 50% tariff on steel, aluminum, and copper imports, with the most recent metals adjustment taking effect on June 8, 2026. While over 84% of trilateral trade still flows duty-free under the USMCA’s core compliance rules, the administration is using the threat of expanding these tariffs to other sectors as a general-purpose bargaining tool to secure short-term economic wins.
Reevaluating the Rules of Origin for Automotive Manufacturing
The primary battleground in the upcoming review will be the automotive industry, which relies on a deeply integrated, cross-border supply chain. Under the original USMCA terms, cars must meet strict rules of origin to qualify for tariff-free treatment, requiring that 75% of a vehicle’s components originate within North America, up from NAFTA’s 62.5% threshold.
However, U.S. tariff policies since January 2025 have aimed to push these requirements even further. The Trump administration wants to rewrite Chapter 4’s rules of origin to encourage automakers to shift more production of vehicles and auto parts out of Mexico and Canada and directly into the United States. This effort has created immense friction, as car manufacturers have spent decades building highly efficient supply networks that rely on the lower labor costs of Mexico and the specialized manufacturing capabilities of Canada. Forcing these supply chains to relocate would require billions of dollars in capital expenditure, raising car prices for American consumers and making the domestic auto industry less competitive globally.
Shutting the Chinese Backdoor Through Mexico
Another critical priority for the United States is preventing Chinese companies from using Mexico as a backdoor to access the American market. Over the past few years, major Chinese manufacturers, particularly in the electric vehicle and green energy sectors, have invested heavily in Mexico to establish production facilities. By manufacturing goods in Mexico, these Chinese-owned firms hoped to qualify for tariff-free access to the United States under the USMCA, effectively bypassing Washington’s heavy tariffs on direct imports from China.
The Trump administration has made it clear that it will not tolerate this practice. U.S. negotiators intend to use the joint review to introduce strict new rules that would deny USMCA benefits to any Mexican-assembled goods that utilize Chinese parts, technology, or corporate ownership. This stance poses a severe challenge to Mexico’s nearshoring ambitions, as the country has marketed itself as a primary destination for global companies looking to relocate production closer to the U.S. market. If Mexico cannot guarantee tariff-free access for products made with global components, its appeal as an investment hub could decline significantly.
The Deterioration of US-Canada Relations Under Mark Carney
One of the more surprising developments of the current trade dispute is the sharp deterioration in relations between the United States and Canada. Under Canadian Prime Minister Mark Carney, Ottawa has adopted a highly independent economic posture, even launching exploratory trade talks with China to diversify its export markets. Carney has stated that Canada will not let the United States dictate the terms of the joint review, ruling out the use of critical minerals or energy exports as leverage to force a U.S. compromise.
The diplomatic atmosphere between the two neighbors has grown increasingly tense. The U.S. ambassador to Canada recently retweeted a reference to Canada as the “fifty-first state,” a comment that sparked outrage among Canadian officials. Furthermore, U.S. Treasury Secretary Scott Bessent implicitly supported Canadian separatism by publicly referring to an independent Alberta as a natural partner for the United States. These high-level insults have eroded the baseline trust necessary to conduct smooth trade negotiations, making a trilateral consensus on the USMCA review highly unlikely.
Canada’s Stance on Preservation of Tariff Advantages
Canada’s primary objective in the upcoming negotiations is to defend its existing trade advantages. The nation is deeply dependent on the U.S. market, with country-to-country trade totaling $909.1 billion in 2024. Canadian industries, from agriculture and forestry to high-tech manufacturing, rely on predictable, duty-free access to their southern neighbor.
To protect these interests, Canadian negotiators are focused on resisting any U.S. attempts to dismantle the trilateral framework in favor of bilateral agreements. Ottawa fears that if the USMCA is carved up into separate bilateral deals, the United States will use its massive economic leverage to extract unfair concessions from Canada on key disputes, such as dairy quotas, softwood lumber, and digital services taxes. Preserving the trilateral structure provides Canada with a collective shield, but maintaining that shield will require navigating a highly hostile political environment in Washington.
Mexican Pragmatism Under Claudia Sheinbaum
In contrast to the friction between Washington and Ottawa, relations between the United States and Mexico have remained relatively stable. Mexican President Claudia Sheinbaum has taken a highly pragmatic approach to the trade dispute, dismissing the threat of a full U.S. withdrawal from the USMCA as political posturing. Sheinbaum has publicly stated that the trade pact is simply too integrated and important to the U.S. economy for Washington to walk away.
However, Mexico still faces significant challenges as the joint review begins. The Mexican government wants the United States to reduce its existing metal tariffs and preserve the preferential rules of origin that have allowed Mexico to become the United States’ top trading partner, with bilateral trade reaching $935.1 billion in 2024. While Mexico is willing to discuss concerns regarding Chinese investment, Sheinbaum must walk a fine line to protect her country’s sovereign economic interests while avoiding a destructive tariff escalation that could derail Mexico’s economic growth.
The Financial and Supply Chain Stakes of Termination
If the three nations fail to resolve their differences and the USMCA eventually expires or is terminated, the economic consequences for North America would be severe. In 2024, total intra-regional trade within the bloc reached an estimated $1.93 trillion, representing approximately 30% of global GDP. The deeply integrated supply chains created over thirty years of free trade have allowed North American manufacturers to compete effectively with their counterparts in Europe and Asia.
A collapse of the trade agreement would lead to several damaging outcomes:
- Resurrection of MFN Tariffs: Without the USMCA, trade would revert to Most Favored Nation (MFN) rules. Under these guidelines, U.S. tariffs would average around 3%, Canadian tariffs would rise to 6%, and Mexican tariffs would jump to 7%, immediately raising costs for consumers.
- Automotive Industry Disruption: Vehicles and auto parts that rely on cross-border assembly would face multiple layers of tariffs as they cross borders during the production process, making North American cars far more expensive.
- Agricultural Trade Collapse: American farmers increasingly rely on exports to Canada and Mexico as access to other overseas markets becomes more difficult. A return to high tariffs would devastate agricultural communities across the American Midwest.
- Job Losses: According to government data, regional trade within the USMCA supports 56.2 million total jobs across the three nations. Dismantling the agreement would put millions of these livelihoods in immediate jeopardy.
While outright termination of the agreement remains unlikely due to the catastrophic economic damage it would cause, the transition to annual reviews will still impose a significant tax on regional commerce. The loss of business certainty will discourage long-term capital investments, prompting some multinational firms to relocate their production facilities outside of North America entirely.
Conclusion
The upcoming joint review of the USMCA on July 1, 2026, marks the end of an era of predictable North American trade. By declining to extend the agreement for a new sixteen-year term, the Trump administration is intentionally introducing a decade of annual reviews to force Canada and Mexico into separate, bilateral negotiations. This aggressive strategy, backed by punitive metal tariffs and a demand for deep structural concessions, has placed the future of continental trade in serious jeopardy.
While Mexico is approaching the negotiations with pragmatism and Canada is fighting to preserve its sovereign trade advantages, the path to a consensus is filled with technical and political obstacles. The U.S. focus on reshaping automotive rules of origin and shutting down Chinese investment in Mexico will require both neighbors to make difficult economic sacrifices. As negotiators prepare for a prolonged period of fitful talks, the North American business community must adapt to a highly volatile regulatory environment, proving that even the most successful trade agreements are never entirely safe from the shifting winds of domestic politics.
