Toronto, Nov 1 (AP) Canadian Prime Minister Mark Carney said he told Ontario's premier not to run an anti-tariff advertisement that prompted US President Donald Trump to end trade talks with Canada.

Carney also confirmed that he apologised to the president during a dinner at the the Asia-Pacific Economic Cooperation summit because Trump was “offended.” Ontario's television advertisement that aired in in the US criticises Trump's tariffs by citing a speech from former US President Ronald Reagan.

The ad infuriated Trump, who ended trade talks with Canada and said he plans to hike tariffs on imports of Canadian goods by an extra 10 per cent.

When asked on Saturday what Ontario Premier Doug Ford's response was to being asked not to run the ad, Carney said, “Well, you saw what came of it.” “It's not something I would have done,” Carney added at a news conference as he wrapped a nine-day trip to Asia.

Ford is a populist Conservative while Carney is a Liberal. As premier, Ford is the equivalent of a US governor.

“I'm the one who is responsible, in my role as prime minister, for the relationship with the president of the US, and the federal government is responsible for the foreign relationship with the US government,” Carney said.

A spokesperson for Ford didn't immediately respond when asked if Carney told Ford not to run the ad.

Ford previously said Carney and Carney's chief of staff watched the ad before it was released.

Ford pulled the ad last Monday but allowed it to be shown in the first two games of the baseball World Series.

Trump said the ad misrepresented the position of Reagan, a two-term president and a beloved figure in the Republican Party. But Reagan was wary of tariffs and used much of the 1987 address featured in Ontario's ad spelling out the case against them.

Trump has complained the ad was aimed at influencing the US Supreme Court ahead of arguments scheduled this month that could decide whether Trump has the power to impose his sweeping tariffs, a key part of his economic strategy. Lower courts had ruled he had exceeded his authority.

Carney met with Trump at the White House last month and has been trying to secure a trade deal to lower some tariffs on sectors like steel and aluminum. Tariffs are taking a toll in the aluminum, steel, auto and lumber sectors.

More than three-quarters of Canadian exports go to the US, and nearly 3.6 billion Canadian dollars (USD 2.7 billion) worth of goods and services cross the border daily. (AP) GRS GRS

Tariff dispute prompts federal intervention and apology, halting trade talks and raising questions about executive tariff authority. Federal leadership discouraged a provincial anti-tariff advertisement that offended a foreign head of state, prompting an apology and a pause in bilateral trade talks. The ad cited a former president to criticise current import tariffs and was alleged to be intended to influence pending judicial review of executive tariff authority. The federal leader stressed that foreign relations fall within federal responsibility, and the episode has immediate effects on tariff policy negotiations affecting trade-exposed sectors.