President Donald Trump walks on the Ellipse as he arrives on Marine One close to the White House, Friday, Aug. 21, 2026, in Washington.

Manuel Balce Ceneta/AP

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Manuel Balce Ceneta/AP

WASHINGTON — The United States imposed 50% tariffs on $20 billion value of Canadian merchandise early Saturday, and Canada instantly said it would retaliate, after last-ditch negotiations failed to resolve the newest pressure in already tense relations between the historic allies.

President Donald Trump’s import taxes will hit about 5% of what Canada ships to the United States every 12 months, including merchandise ranging from hockey sticks to tongue depressors.

Canadian Prime Minister Mark Carney said it would match the U.S. tariffs greenback for greenback, escalating the commerce battle and calling into the query the future of a North American commerce pact between the United States, Canada and Mexico that is essential to trade in all three international locations.

Canada sought concessions on Trump tariffs on metal, aluminum, autos and lumber that the United States was unwilling to present.

“Tonight, Canada declined to finalize the trade deal under the terms agreed earlier this week. Despite the U.S. offer to Canada to receive the best treatment of any major exporter to our market, new demands and walk-backs of other commitments by Canada have upended the careful balance reached in the past days,” U.S. Trade Representative Jamieson Greer said in a assertion learn to reporters on a press call shortly before midnight.

Carney responded, “Last-minute changes in the U.S. proposed terms were unfair, uneconomic, and called into question the reliability of any deal.” He said his authorities would announce further support for Canadian employees and companies in the coming days.

Greer said the U.S. provide was “forward-looking” and included “a historic economic and national security partnership.”

No further talks have been deliberate. The breakdown in negotiations marked a sharp reversal from two days earlier, when officers from the two international locations sounded as if they were headed toward a compromise.

A sometimes cooperative alliance goes bitter

The political affect will doubtless be even larger than the financial fallout. The international locations offered each other $880 billion value of items and companies last 12 months.

The tariffs were initially supposed to kick in at 12:01 a.m. Wednesday. But Trump prolonged the deadline for three days to permit talks to proceed, but the two international locations still could not attain an settlement in time.

The two international locations have wrangled for a long time over commerce, poking each other over sore spots like Canadian softwood lumber imports and U.S. entry to Canada’s protected dairy market.

Somehow, they still managed to stay buddies, allies and buying and selling companions. Canadian troopers fought alongside Americans in Afghanistan after 9/11. The 5,525-mile U.S.-Canada border is undefended, and almost 330,000 folks and $2 billion value of items cross it every day; 800,000 Canadians dwell in the United States.

Trump’s strategy to dealing with Canada marks an extraordinary departure from the historically cooperative relationship between the two international locations. Trump has hit Canadian items with tariffs — in a push to carry manufacturing back to the United States — and has repeatedly made inflammatory feedback about turning Canada into America’s 51st state.

Canadians and Americans are annoyed

The Canadian public is fed up. A petition to expel the U.S. ambassador, a Trump ally, has collected almost 248,000 signatures since July 21. It accuses Ambassador Pete Hoekstra of having “normalized” Trump’s talk of annexing Canada, among other things.

The two countries had good reasons to find a compromise.

Nearly 72% of Canada’s goods exports last year went to the United States. And the Trump administration might be wary of imposing a hefty new tariff — paid by U.S. importers who try to pass along the cost to consumers via higher prices — ahead of November’s midterm elections. American voters are already frustrated with the high cost of living.

“Canada doubtless wished further sector-specific aid than the U.S. was prepared to provide, or Canada’s concessions did not go far enough,” said Ryan Majerus, a companion at King & Spalding and a former U.S. commerce official. “Either way, I think both sides will be under immense pressure in the coming days to still find an off-ramp. But if Canada has agreed to also impose tariffs, the off-ramp may be even harder to find.”

Candace Laing, president and CEO of the Canadian Chamber of Commerce, called the tariffs “a body blow to North American competitiveness,” warning they would increase prices for Americans while threatening Canadian prospects, funding and small companies.

The rift comes as the United States, Mexico and Canada are making an attempt to renew a commerce settlement that Trump negotiated in his first time period and once praised as a triumph. The United States has begun formal talks with Mexico over revamping the US-Mexico-Canada Agreement (USMCA). But talks with Canada have not begun, and escalating commerce battle casts doubt on whether they will.

“Canada told the Americans in advance that if these tariffs landed, it would stop negotiating and retaliate,” said Barry Appleton, senior fellow at the Center for International Law at New York Law School. “The American commerce consultant said publicly he would not tolerate retaliation. Both sides have now dedicated themselves in public, which is how escalation stops being a selection.”