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.

Ontario Premier Doug Ford said a 25% surcharge on electricity sent to Michigan, Minnesota and New York, will be effective on March 10.

The Canadian province of Ontario officially imposed a 25% surcharge on all its electricity exports to the U.S., which officials say will affect 1.5 million households and businesses in Michigan, Minnesota and New York.