(Bloomberg) — Minutes before Air Force One touched down in South Korea, US President Donald Trump issued a terse missive on social media: “For those that are asking, we didn’t come to South Korea to see Canada!”

Just over 12 hours later, Trump was seated directly across a small dinner table from Canadian Prime Minister Mark Carney.

Trump has been furious with Canada ever since the province of Ontario began airing an ad using an old Ronald Reagan radio address to criticize his tariff regime. He’s accused Canada — and Carney — of seeking to influence the US Supreme Court, which is set to hear arguments about the legality of his use of levies on foreign goods next week.

The spat culminated in Trump announcing his intention to slap an additional 10% tariff on Canadian goods as he traveled t

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