US embassy accuses Canadian politicians of election interference amid tariff dispute

A document reported on October 21, 2026, said the American diplomatic mission in Canada alleged that Canadian political figures were attempting to shape US politics before the midterm elections. Canadian Prime Minister Mark Carney disputed the allegation as the countries remained at odds over US tariffs and Canada's response.²

What the embassy alleged

The embassy's document brought together tariff-related advertising, contacts with American politicians and public remarks by Canadian figures. Its list included statements about applying pressure to American businesses and directing retaliatory tariffs at particular US states. The embassy presented those examples as indications of an intention to influence American politics.²³⁵

According to WRAL, the embassy cited Canadian Industry Minister Mélanie Joly's discussion of retaliatory tariffs aimed at Republican states, along with an Ontario advertisement featuring former US president Ronald Reagan speaking against tariffs. WRAL reported that the embassy had not established that either example amounted to improper election interference.¹

US Ambassador Pete Hoekstra said American officials were monitoring Canadian politicians for signs of interference, according to CP24. He said Ontario's advertisements and Joly's comments about politically sensitive states could be interpreted that way. The embassy said the United States would respond if Canadian actions constituted election interference.³

The embassy also referred to Canadians charged with voting illegally in US elections dating back to 2012. It supplied no evidence connecting those individuals to the Canadian government. In a separate assessment reported by the Associated Press, McGill University political scientist Daniel Béland said the cases listed in the document did not demonstrate authentic foreign interference.¹⁴²

Canada's response

Carney said the United States had initiated trade action against Canada and described Canada's measures as serving its workers, families and economy. CityNews reported that, at his October 21 news conference on Parliament Hill, he did not directly address the accusations. Other reporting described him as disputing the suggestion of Canadian interference.⁵²³

Ontario Premier Doug Ford said he had "no interest in interfering in American elections". Joly also denied that Canada would engage in election interference, CP24 reported. She said she had met both Democrats and Republicans in the United States and described attracting investment as the purpose of her activity there.⁵³

Trade dispute continues

The accusations came against a backdrop of stalled trade negotiations and new costs for businesses and households. Talks collapsed in August after the two countries appeared close to an agreement. President Donald Trump imposed tariffs of 50% on about $20 billion in Canadian goods, while Canada adopted retaliatory measures.¹⁴

Canadian auto exports to the United States fell by more than 10%, while US exports to Canada declined by more than 20%. Carney and Ford announced a plan to support Ontario manufacturing. WRAL said the plan provides steel producers with CA$5.2 billion across a five-year period and allocates CA$2.5 billion to car manufacturers, with Ottawa contributing CA$1.5 billion of the latter amount.¹⁴

The Ontario advertisement had already affected trade discussions: Trump cancelled talks in October 2025 after it aired during the World Series. Carney criticised the economic effects of the tariffs, saying: "Tariffs make both our industries weaker and reduce choice for our families."¹⁴