US-Mexico trade negotiations have hit an impasse, and the casualty could be the future of the entire USMCA framework. That's the headline from a Wall Street Journal report this week, which pinned the breakdown on objections from US Commerce Secretary Howard Lutnick.

The two sides had been closing in on a limited agreement. In essence, Washington would have drawn down American duties on steel, aluminum and cars in exchange for concessions from Mexico City, according to the WSJ's unnamed sources. Mexican officials and private-sector executives had grown genuinely optimistic about the prospects.

More than that, this interim deal would have opened a path to broader talks on the US-Mexico-Canada Agreement itself — the pact the US declined to renew at its six-year joint review over the summer.

What killed the near-deal?

Momentum started bleeding away in recent days, the WSJ reported. The friction traces back to two tariff lines: the 25 percent US duties on cars and the 50 percent duties on metals, both administered by the Commerce Department on national security grounds. Lutnick has resisted reducing them, the sources said.

Both governments deny the talks have stalled. Officials on each side insist they remain heavily engaged.

Is USMCA itself now at risk?

The breakdown raises hard questions about the trilateral agreement's trajectory. USMCA now faces annual reviews until 2036 — or until one of the three partners decides to walk away.

This isn't the first time Lutnick has derailed a near-deal. In August, the US and Canada were working toward an arrangement built on lower American tariff rates for metals and vehicles. The Commerce Secretary objected to its scope, the talks collapsed, and the two countries slid into a trade war. They have since hit each other with bilateral tariffs of up to 50 percent on more than $20 billion in exports.

US Trade Representative Ambassador Jamieson Greer had promised interim agreements with both Canada and Mexico by year's end. The plan was to wind down duties in critical sectors first, deferring the bigger fights over rules of origin, labor and environmental protections until full USMCA negotiations resume. Given the simmering tensions with Ottawa and the deflated hopes for a quick fix with Mexico City, that timeline now looks unlikely.

"Some of the biggest questions for 2027 remain unresolved. One is the North American partnership," said Blake Harden, managing director of the Washington Council at Ernst & Young LLP, at a virtual trade roundtable on Thursday.

"USMCA was not renewed in July, but it wasn't terminated either, and it remains in force while the US and Mexico negotiate," Harden said. "And some of those talks are expected to continue into 2027."

What does this mean for apparel and soft goods sourcing?

For supply chain planners, the message is blunt. "North America itself has become a risk variable," said Sameer Anand, EY-Parthenon Americas supply chain leader.

Anand pointed to the breakdown in both bilateral and collective USMCA talks, plus the 50 percent duties on Canadian vehicles levied under Section 338 in August. Companies, he argued, will likely have to pivot away from long-term strategies built around the trade agreement.

"What happens to Canadian vehicles and parts that are facing 50 percent tariffs, and what happens to auto companies that are thinking about adding capacity, but now they may change direction without a USMCA agreement?" Anand asked. "A different choice needs to be made."

The problem, he noted, is that with uncertainty still swirling, many companies sit trapped in a cycle of "decision lag" — unable to commit to capacity, sourcing or investment calls while the rules stay in flux.

Harden added that companies express a "deep desire for policy certainty and stability," but they've also learned they "just have to operate within" the uncertainty — which looks set to persist into 2027.

The decision this forces

For sourcing directors, the stalled talks translate into a concrete planning problem. Any nearshoring or Mexico-based production strategy priced around duty relief on metals, autos or industrial inputs can't be banked yet. The 25 percent auto and 50 percent metals tariffs remain in force with no confirmed drawdown date, and the WSJ-sourced account of the impasse sits unconfirmed by both governments.

The practical move: treat USMCA-dependent cost models as scenario planning rather than baseline, keep tariff-engineering alternatives ready for cross-border flows, and watch the annual review calendar — every year through 2036 is now a live renegotiation risk. Until Washington and Mexico City either confirm a deal or formally break off, North American sourcing carries a premium of uncertainty no supplier contract currently prices in.