World leaders from New Delhi to Brussels facing tariffs from President Donald Trump’s administration are watching Canada to get a preview of what happens when you hit back.

Canadian officials have gone hostile in their responses to Trump’s trade war. Ontario Premier Doug Ford slapped a 25% charge on electricity exports to make power more expensive for people in New York and two other states — earning the president’s ire. Mark Carney, the incoming prime minister, called the US “a country we can no longer trust,” and said his new government will keep its retaliatory tariffs in place “until the Americans show us respect.”

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