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Gabe Whisnant

By Gabe Whisnant

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Canada unveiled $20 billion in retaliatory tariffs against the United States on Tuesday as tensions between the two countries spiral, with President Donald Trump demanding Canadian leaders "fall in line" and Prime Minister Mark Carney accusing Washington of seeking to weaken Canada's sovereignty and economy.

"In the face of unjustified American tariffs, Canadians have shown resolve, purpose, and strength. The government is matching that spirit — protecting Canadian workers, businesses, and families," Carney said in a post to X Tuesday night.

Ottawa announced that retaliatory tariffs on U.S. imports will take effect September 8, with duties of 15 percent, 25 percent and 50 percent applied to about 700 products, according to a government statement released Tuesday.

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Alongside the tariffs, Ottawa unveiled a $7.5 billion aid package aimed at cushioning the economic impact, offering support for businesses, additional financing options and assistance for workers at risk of losing their jobs due to the escalating trade dispute.

"Our dollar-for-dollar, rate for rate counter-tariffs as well as a multi-billion dollar ​support package will ​protect workers, ⁠farmers, families, and businesses," Canada's Finance Minister François-Philippe Champagne said in a statement.

The latest dispute follows Trump's threat to impose new 50 percent tariffs on Canadian vehicles, auto parts and steel after trade negotiations collapsed late Friday. Carney has argued the U.S. demands would devastate key Canadian industries, while Trump has continued to mock Canada's leadership, calling the prime minister "Governor Carney" and floating the idea of renaming Lake Ontario "Lake America."

Speaking Wednesday on Glenn Beck's radio program, the president doubled down on the idea of renaming Lake Ontario: "We're taking them on ... you saw the Lake Ontario. People thought I was kidding, but maybe I wasn't. Because the last one you saw was the Gulf of Mexico. It's Gulf of America. So now we have a gulf and a lake. It's very simple ... it's time to teach Canada you can't do this anymore."

Duncan Wood, a visiting fellow for North America at the Woodrow Wilson Center in Washington, D.C., told Newsweek that Ottawa's approach is "firm but disciplined," arguing the government is responding forcefully while avoiding indiscriminate retaliation.

"The objective is not to win a tariff war; it is to establish the credibility required to negotiate with this administration."

U.S. President Donald Trump (L) speaks with Canada's Prime Minister Mark Carney at the G7 summit in Evian, France, on June 16, 2026.

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Newsweek reached out to the U.S. Treasury Department via email for comment.

Economic and Political Stakes for the US and Canada

Canadian officials have warned the trade fight could also affect American businesses. Ontario Premier Doug Ford said Monday that "everything is on the table," including restricting exports of electricity and critical minerals to the United States if tensions worsen.

Although cars, auto parts and energy products were excluded from Trump's latest tariff package, they remained central points of contention in talks that broke down over the weekend. Carney warned Washington's proposals would gradually dismantle Canada's auto sector, while noting that Canada is the largest foreign buyer of U.S.-made vehicles and questioning how further tariffs would affect workers in manufacturing-heavy states such as Ohio, Kentucky and Alabama.

The dispute also increases pressure on Republicans in states with strong trade links to Canada, including Maine, Michigan, Ohio, Alaska and Iowa, where businesses and workers could feel the effects of a prolonged trade war.

Republican Representative Lisa McClain of Michigan told Fox News on Tuesday, "What President Trump is trying to do, and I applaud him for that, is level the playing field. There is absolutely no way that President Trump is going to the make a bad deal for the American people."

Meanwhile, Republican Susan Collins of Maine, involved in a tightly-watched midterm Senate battle, told reporters Monday, “Imposing new tariffs on Canada is a mistake."

Wood said the tariff package appears designed with U.S. domestic politics in mind. "The political geography is striking," he told Newsweek, noting that several of the states most exposed to the dispute are expected to be battlegrounds in the 2026 midterm elections.

Despite Ottawa's efforts to leave room for negotiations, Wood said a quick resolution appears unlikely. "The conflict is unlikely to be resolved quickly," he said. "In fact it may get worse before we reach a denouement."

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Full List of US Goods Included in Canada's Counter-Tariffs

Canada's retaliatory tariffs include:

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Final-Detailed-List-for-Publication-English.pdf.PDF

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Why Did Trump Impose Tariffs on Canada?

The Trump administration has argued that the tariffs are necessary to counter what it describes as Canada's unfair treatment of American exports and to secure better terms for U.S. industries. In announcing the latest duties, the White House said Canada maintains trade policies that disadvantage American products, particularly in sectors such as automobiles, dairy and alcohol, and argued that the tariffs are intended to "level the playing field" for U.S. businesses.

“I deal with many countries, and Canada is easily the most difficult and unreasonable,” Trump wrote Tuesday on Truth Social. “They feel entitled, but they are not a State, and will be entitled no longer!”

The tariffs are also part of Trump's wider approach to trade negotiations, which relies heavily on economic pressure to extract concessions from trading partners. Trump administration officials have said the measures were designed to give Washington leverage in talks over market access and other trade disputes, while critics argue they risk disrupting one of the world's most integrated economic relationships. The United States and Canada exchange hundreds of billions of dollars in goods each year, and recent negotiations collapsed amid disagreements over tariffs, industry protections and other trade issues.

Later Tuesday, CNN's Jim Sciutto reported that Trump did not dispute Canadian officials' assertion that the U.S. added late-stage demands during trade talks that ultimately collapsed. Asked in a phone call about the claim, Trump reportedly told CNN, "That sounds like me," and later added that he did not "deny anything," arguing that Canada must pay "a fair amount" or risk no deal being reached.

The Associated Press contributed to this story.

Contact Newsweek editors on this story: Sam Wilson, Anna Commander

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