The premier of Ontario, who has imposed a 25% surcharge on electricity exports to the United States, on Tuesday said he would not back down until U.S. President Donald Trump scrapped his tariffs on Canadian imports.

Ontario Premier Doug Ford fired back at President Trump following his latest vow to double tariffs on steel and aluminum, saying during an interview that Canada will “not back down” and called on the commander in chief to shift his focus on China instead of the U.