USMCA Review 2026: Six Scenarios for North America’s Future

USMCA Review 2026: Six Scenarios for North America's Future

Photo: FREDERIC J. BROWN/AFP via Getty Images

Three scenarios now seem most realistic. The base case remains a painful extension, with negotiations stretching into late 2026 or beyond, concentrated in autos, energy, China-related disciplines, and enforcement architecture. Mexico and Canada make concessions to reduce tariff exposure and extend the agreement. Some of those concessions will be costly, particularly on rules of origin or market access. But the pain in this scenario may lie as much in the negotiation as in the outcome. A difficult, protracted process that ultimately produces a modernized agreement with manageable terms would still be a better result than most alternatives on this table. This is the outcome most market participants are pricing in. (A forthcoming CSIS commentary will examine the contours of an amended agreement, including each country's negotiating red lines and the range of outcomes that could satisfy all three parties.)

A second plausible path is serial annual reviews: No deal is reached in 2026, and the agreement enters yearly renewal cycles. The USMCA stays in force, but under a cloud of sustained uncertainty that discourages long-term investment bets on North America. For Mexico and Canada, this scenario may be a calculated gamble, accepting short-term costs in exchange for the possibility that a future U.S. administration will approach the agreement with less hostility. That bet carries its own risks, chief among them a severe reaction from the current White House. For Washington, annual reviews might also be more palatable than they appear, keeping the agreement in force through the 2026 midterms while preserving the option to pursue more disruptive goals after the election.

A third possibility is a fallback to bilateral agreements. If trilateral consensus proves unreachable, the parties could pivot to separate U.S.-Mexico and U.S.-Canada arrangements. This would preserve some market access but fracture the regional coherence that makes North American supply chains work, and it would leave whichever partner is excluded from a given negotiation in a weaker position. The bilateral launch of the review on March 18, without Canada at the table, is already a step in this direction.

Withdrawal remains unlikely as a final outcome. But as a tactic, it is very much in play. The Trump administration has used the threat of walking away to extract concessions before, and compressed timelines make that bluff more credible and more dangerous. The risk is not that Washington leaves. It is that a brinkmanship move intended as leverage triggers a political reaction that makes it harder for Mexico or Canada to remain at the negotiating table. President Trump has shown a willingness to reverse course. President Sheinbaum has not, and may not be able to. And Canada's reservoir of goodwill with Washington may be running out as well.

The cost of uncertainty is already visible. Investment in Mexico is down roughly 10 percent year over year. U.S. job creation has slowed, with near-zero growth in 2025. Over 100,000 full-time jobs were lost in Canada in the first two months of 2026. These are not hypothetical costs. They are the price of a review process that was late to start, politically fractured, and unfolding in an atmosphere of sustained U.S. economic coercion. And it is worth asking what, exactly, is being put at risk. In 2025, the United States imported $12.40 from Vietnam for every dollar it exported there. The comparable ratios for Mexico and Canada, $1.58 and $1.14, are the ratios of an integrated coproduction system, not one-way import flows.

In addition to the uncertainty of the negotiations, three forces are driving these outcomes: a reshaped tariff architecture in Washington, a Mexican government stretched between security delivery and domestic reform, and a Canadian strategic pivot away from U.S. dependence.

The SCOTUS IEEPA Ruling: A New and Reinforced Tariff Wall

The Supreme Court's 6-3 decision striking down IEEPA tariffs is the most structurally significant development of 2026. In nearly 50 years of the statute's existence, no president had ever invoked it to impose tariffs. The majority held that the power to impose tariffs is reserved to Congress unless it has specifically delegated that authority, which the court determined it had not done with IEEPA. Within hours, the administration invoked Section 122 of the Trade Act of 1974, imposing a global import surcharge initially set at 10 percent and subsequently scheduled to rise to 15 percent, the statutory maximum for the 150 days permitted by the statute without congressional approval to extend it.

The economic impact may be modest. The administration intends to replace IEEPA with Section 232 and Section 301 authorities, which have procedural requirements that slow implementation but will likely permit it to reimpose most of the tariffs. The tariff tool kit remains expansive.

Critically for North America, USMCA-compliant goods remain exempt from the Section 122 surcharge. Yet roughly 32 percent of Mexican USMCA-compliant goods and 37 percent of Canadian goods remain subject to Section 232 tariffs. The Section 232 steel tariff, now at 50 percent, has begun producing visible downstream effects, extending to derivative products and raising costs across consumer goods and manufacturing.

The ruling has an important implication for the review itself. The credibility of large, rapid tariff threats has been modestly but meaningfully reduced. That may paradoxically push Washington toward the USMCA review as the preferred venue to extract concessions it can no longer reliably secure through unilateral executive action. The new Section 301 investigations targeting Mexican and Canadian supply chains add further pressure. For President Sheinbaum and Prime Minister Carney, sitting down to negotiate becomes politically harder when their countries are simultaneously being investigated for unfair trade practices and subject to national security tariffs.

The tariff architecture constrains Washington. But for Mexico, the binding constraints are closer to home.

Mexico: Delivering on Security, Exposed on Domestic Reform

President Sheinbaum has done a remarkable job managing sustained pressure from Washington under extremely difficult conditions. But her margin for error is thin, and recent events illustrate how quickly stability can unravel.

The shift in U.S.-Mexico security cooperation since early 2025 is without modern precedent. Compared to her predecessor, President Sheinbaum has undertaken record-level fentanyl seizures and targeted cartel leadership at the highest level, culminating in the killing of "El Mencho" on February 22, 2026. The message was clear: Bilateral intelligence cooperation works, and U.S. troops on Mexican soil are neither needed nor welcome. Yet in Washington, these steps have been viewed as necessary, not decisive. Accommodation today becomes expectation tomorrow. And the aftermath of El Mencho's death showed how quickly security gains produce new instability-roadblocks at more than 250 points across 20 states, at least 73 people killed, 25 National Guard members dead, and the city of Guadalajara paralyzed, all just months before Mexico hosts FIFA World Cup matches.

Security, however, is not the only vulnerability. Mexico's constitutional overhaul and fiscal governance remain self-inflicted sources of investment uncertainty. The judicial reform, the energy sector's closure to private competition, and unpredictable tax enforcement have undermined what should be a cornerstone of Mexico's nearshoring appeal. The Office of the U.S. Trade Representative explicitly flagged these concerns in its report to Congress. Even if security cooperation succeeds on every metric, Mexico's negotiating position in the review will remain weakened as long as domestic policy choices continue to erode investor confidence. Resolving most of these issues does not require new legislation. It requires consistent, transparent enforcement of existing rules, a signal the Sheinbaum government has the power to send.

The bilateral relationship is now fully decompartmentalized. Security cooperation is no longer a parallel track; it has become a gatekeeper for economic certainty. Without sustained results-not just cooperation, but measurable outcomes-the White House has signaled it may consider unilateral kinetic action against cartels on Mexican soil. That remains the bilateral poison pill. If that line is crossed, economic integration becomes collateral damage.

If Mexico's challenge is proving it can deliver, Canada's is deciding how much dependence it is willing to accept.

Canada: Sovereignty Under Pressure, Divergent Strategy

Canada's situation has grown considerably more fraught since August 2025. The administration's annexation rhetoric has become a sustained campaign of political and economic coercion. President Trump threatened to block a new Canadian-built bridge across the Detroit River, proposed a 100 percent tariff if Canada pursued a trade deal with China, and continued to describe Canada as a prospective 51st U.S. state.

Prime Minister Carney has responded with a strategic reset: committing to NATO defense spending of up to 5 percent of GDP and calling for a new security and economic framework with the United States. At Davos in January, Carney declared that the rules-based international order had experienced "a rupture, not a transition" and outlined a strategy of rapid trade diversification, signing 12 agreements on four continents since taking office. The goal is not to replace the U.S. market but to build alternatives that reduce Washington's leverage over time. The House of Representatives' bipartisan vote to override Trump's tariffs on Canada demonstrated that Ottawa retains meaningful domestic political support in Washington that the administration's political leadership has chosen to disregard.

Strategically, Mexico and Canada are now making opposite bets. Mexico is deepening its integration with the U.S. market while shifting its posture toward China, both as an accommodation to Washington and as a response to its own concerns about Chinese excess capacity in sectors from steel to textiles. Plan Mexico, the Sheinbaum government's industrial strategy, aims to reduce reliance on Asian inputs and increase domestic production, though its targets remain aspirational and implementation uncertain. Canada is not walking away from the U.S. market. It is diversifying toward other partners, aiming to grow trade with non-U.S. markets faster than trade with the United States, a distinction that often gets lost in political rhetoric on both sides of the border. Same treaty, same moment, divergent strategies. That divergence will shape how each country approaches the review: Mexico as a partner willing to tighten the terms of integration, Canada as one negotiating from an increasingly defensive position.

What's at Stake

A bad deal for Mexico and Canada would look something like this: Concessions continuously extracted under threat, Section 232 and potentially Section 301 tariffs left in place, and trilateral rules subordinated to Washington's pressure. That would weaken North America's competitive edge and undermine the economic security President Trump claims to pursue. Market access would survive on paper. The predictability that makes it possible would not, and neither would job creation. The damage would be measured less in immediate decline than in lost opportunities for growth, investment that never arrives, supply chains that locate elsewhere, and a coproduction system that slowly ceases to function as one.

But a bad deal is not the only possible outcome. The Trump administration has a history of making maximalist demands and settling for considerably less while declaring victory. An agreement that tightens rules of origin, strengthens enforcement, and addresses China-related supply chain concerns without dismantling the trilateral framework is still within reach. If all three governments can accept it, that would be far preferable to prolonged uncertainty. Higher auto content requirements, investment screening for nonmarket economies, and stronger forced labor enforcement would give the administration enough to claim victory while preserving the framework that underpins close to $2 trillion in annual trade.

If that deal proves unreachable, the USMCA can remain in force for up to a decade under annual reviews. That is not ideal, but it preserves the institutional framework, keeps rules of origin intact, and buys time for political conditions to evolve.

The harder truth applies to all three capitals. The United States cannot close China's lead in critical technologies alone. Mexico cannot convert nearshoring potential into growth without institutional credibility and deeper ties with its North American partners. Canada cannot outrun proximity. Canada's new trade strategy, however ambitious, does not offset sharing the world's longest border with the world's largest economy. Each capital needs the other two more than current rhetoric suggests. The risk is that short-term political pressure leads one or more parties to accept terms whose costs only become clear over a 16-year horizon. Durable alignment will not come from a deal signed under duress. It will come from one all three governments, industry, and civil society can sustain.

Diego Marroquín Bitar is a fellow with the Americas Program at the Center for Strategic and International Studies (CSIS) in Washington, D.C. William Reinsch is senior adviser and Scholl Chair emeritus with the Economics Program and Scholl Chair in International Business at CSIS.

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