Politicians and industry leaders have long pushed to remove barriers to interprovincial trade. Trump’s tariffs are giving the effort new momentum.

A three-day meeting in response to President Trump’s looming tariff threat underscored differences between the leaders of Canada’s provinces and territories.

I think Canada could be one where there's just a tariff, not really a negotiation." The two nations are trying to work out a trade deal before August 1, when Washington is threatening to impose 35% tariffs on all Canadian goods not covered by the U.