Trade War Intensifies: 50% Tariffs Now in Effect
President Donald Trump's latest escalation in the trade dispute with Canada took effect Saturday, with 50% tariffs imposed on US$20 billion worth of Canadian imports. The levies were originally slated to begin Aug. 19 but were delayed after Trump declared a deal; however, last-ditch negotiations failed, and the tariffs kicked in just after midnight.
Prime Minister Mark Carney quickly promised to match the new tariffs "dollar for dollar," with retaliatory duties set to take effect Sept. 8. Canada pulled out of trade talks late Friday night, according to multiple reports.
Political Reaction in the U.S.
U.S. political leaders, including at least one Republican, are warning that Trump's escalating trade feud will raise costs for U.S. families and businesses while damaging a longstanding relationship with the nation's closest ally.
Washington State Senator Patty Murray wrote on X that Canada is "NOT the 51st state" and that Trump owes Canada's friends and neighbors an apology. She called Canada the state's largest trading partner. According to the Washington Council on International Trade, 29% of all imports to Washington between April 2025 and March 2026—approximately $21 billion in goods—came from Canada.
Michigan Governor Gretchen Whitmer warned that her state is "uniquely impacted" by the "ongoing, chaotic tariff wars with Canada," which she said act as a tax hike on Michigan families and businesses by raising prices at the grocery store and the gas pump.
Republican Senator Susan Collins of Maine also criticized the tariffs, according to The Province. The criticism spans both parties, with Democratic officials including Patty Murray, Gretchen Whitmer, Haley Stevens, Chuck Schumer, and others quoted in multiple outlets.
Timeline of the Trade Dispute
The current conflict traces back to January 2025, when Trump, on his first day back in office, said he expected to put 25% tariffs on imports from Canada. He later signed an executive order imposing those tariffs starting Feb. 4, invoking a national emergency over undocumented immigration and drug trafficking. Outgoing Prime Minister Justin Trudeau promised retaliatory levies.
The tariffs were paused for 30 days, and more limited tariffs took effect March 4. Additional exemptions for automakers and USMCA-compliant goods followed. Meanwhile, Trump's steel and aluminum tariffs—now taxing both metals at 25%—went into effect, and Canada imposed retaliatory tariffs worth $29.8 billion Canadian in March 2025.
In February, the Supreme Court struck down Trump's emergency tariffs with a 6-3 decision. Trump then enacted a temporary 10% global levy.
Later that spring, Canada imposed an additional 25% tariff on non-USMCA-compliant vehicles in April 2025.
Threats and Unrealized Measures
Throughout the dispute, Trump has issued a series of threats. He threatened a 100% tariff on Canadian goods if Canada made a trade deal with China—a measure that did not materialize. He also threatened a 50% levy on Canadian aircraft sold to the U.S., and threatened to block the opening of the Gordie Howe International Bridge.
One notable incident involved Ontario Premier Doug Ford, who paid for an ad opposing U.S. tariffs. Trump then pulled trade talks and threatened an additional 10% tariff on Canada due to the ad. Ford later pulled the ad.
Carney's Response and Broader Strategy
Prime Minister Carney has criticized Trump's "erratic" trade policy. He said negotiations have gone south due to unreasonable U.S. demands, including "threats on French language and culture and Canadian culture." Carney said Canada may need to rethink its relationship with the U.S., adding, "We've ... you're at war when you're attacked, and we got attacked."
Carney has outlined plans to double Canada's non-U.S. exports in the next decade. The USMCA remains in effect until at least its 2036 expiration date, and Canada has called for a 16-year renewal.
The 50% tariffs tax about 5% of Canada's exports to the U.S., including hockey sticks and tongue depressors.
International Perspective
Russian state news agency TASS, citing The Atlantic magazine, reported that Trump is "failing" in the trade conflict, arguing Canada's government is more rational and can protect national interests. The report claimed Carney is more popular than Trump and that Canadians have united around distrust of Washington. It also cited U.S. Trade Representative Jamieson Greer as saying Canada rejected a beneficial deal.
Commentary on Duffy's Remarks
Transportation Secretary Sean Duffy, in comments reported by The Daily Beast, raged against Canada and implied the country should fear devastation if it does not cave to Trump's demands. "And so to think that they're gonna go to war with Donald Trump and actually win that war with the U.S., I think it's foolish on their part," he said. Duffy also asserted that the U.S. "provides security" for its northern neighbors but that "they take advantage of us."
Canada does have a military—the Canadian Armed Forces—with 70,000 regular force and around 30,000 reserve personnel, contrary to Duffy's apparent implication. His comments were met with online corrections, with one user noting that Canada's "non existent military" patrolled U.S. skies on 9/11 and was among the first nations to join in Afghanistan.