Ontario's leadership threatened with an additional surcharge for electricity they export to a few neighboring U.S. states.

President Trump temporarily lifted the tariffs imposed on some Canadian and Mexican goods. But Ontario Premier Doug Ford is still threatening some states in the U.S. with retaliation over Mr. Trump's tariff policies.

Electricity tariffs could also hit families in the three states. American Electric Power provides most of the electricity to Ohio. DTE is the largest supplier to Mich