The administration is hoping to get Canada to re-negotiate a trade pact and pharmaceutical companies to reshore manufacturing. The administration also has several ongoing investigations that could result in tariffs on everything from wind turbines to industrial machinery. "I think we're getting into an ugly phase," said Canadian Sen. Peter Boehm, chair of the Canadian Parliament's Senate Committee on Foreign Affairs and International Trade. After Trump's threat, Canadian Prime Minister Mark Carney said he had agreed to immediately intensify trade talks — indicating that Trump's salvo may be working. Advertisement AdvertisementCorrection: An earlier version of this report misstated the first name of the president of the Maine Chamber of Commerce.