The White House has fired a fresh volley in its widening trade offensive—this time at its northern neighbor. In a late-night missive to Prime Minister Mark Carney, President Donald Trump declared that all Canadian exports entering the United States will be hit with a 35 percent tariff starting August 1.
The letter, one of more than twenty similar notices issued by the President this week, instantly jolts ongoing talks and resets the clock on a deal Ottawa and Washington had hoped to finalize by July 21.
From 25 % to 35 %—and Counting
Canadian shipments have been subject to a 25 percent levy since early this year. Trump’s new order cranks that figure higher, though a senior administration official said items qualifying under the United States-Mexico-Canada Agreement (USMCA) will continue to sail through duty-free. Certain energy commodities may enjoy a softer touch as well, but “no final carve-outs are locked,” the official added.
Ottawa’s Countermove
“Canada will always defend its workers and industries,” Carney posted on X, vowing to meet the revised August 1 deadline with “equal resolve.”
Behind the scenes, Canadian and Mexican negotiators are scrambling to keep the three-way USMCA—which replaced NAFTA in 2020—off life support. A formal review of the pact had been penciled in for July 2026; Trump’s latest salvo throws that timetable into chaos.
Trade War, Season Two
Since re-entering office in January, Trump has leaned hard on tariffs as his economic cudgel, citing lax immigration enforcement and the cross-border flow of fentanyl as justification. While official data show Canada contributes under one percent of the illicit U.S. fentanyl supply, the President maintains the tariff stick is the surest way to secure concessions.
Earlier rounds of duties—25 percent for most goods, with a slightly lower rate on Canadian energy—sparked intense lobbying. In response, the administration carved out exemptions for merchandise that strictly complies with USMCA rules of origin, sparing wide swaths of agriculture, automotive, and tech components.
From Charm Offensive to Confrontation
Relations had appeared to thaw: Carney visited the Oval Office on May 6, and the pair shared a cordial moment at last month’s G7 summit in Quebec. Ottawa even scrapped a contentious digital-services tax aimed at U.S. tech giants—one of Trump’s prerequisites for trade peace.
Yet the détente evaporated overnight. In an NBC interview, Trump revealed he is “seriously considering” blanket tariffs of 15–20 percent on every country still awaiting a White House letter. Brazil has already drawn a threat of a 50 percent duty, prompting President Luiz Inácio Lula da Silva to warn of “reciprocal measures” while signaling readiness to negotiate. The European Union’s turn, Trump hinted, could come “today or tomorrow.”
The Road Ahead
With less than three weeks until the new tariff wall rises, Canadian exporters face a grim calculus: absorb the added cost, find alternative markets, or re-engineer supply chains to meet USMCA criteria. Meanwhile, global partners brace for their own midnight envelopes as Washington’s tariff drumbeat grows louder.
One thing is clear: August 1 is now the fulcrum on which North American trade—and perhaps the broader global order—pivots.
