But Trump announced time was up on March 3, and the tariffs went into effect overnight. Stock markets slipped, Canada ordered reciprocal tariffs, and by Thursday, Trump gave another 30-day extension to goods covered under the United States-Mexico-Canada Agreement, which applies to approximately 38% of imports from Canada.

Beginning Monday, new market rules require any generator selling electricity to the U.S. to add a 25% surcharge, according to Ford's office. Ontario's government expects to generate revenue of $300,000 to $400,000 Canadian dollars per day, "which will be used to support Ontario workers, families and businesses."