Ontario Premier Doug Ford said Monday he is prepared to cut off electricity exports to the U.S. if President Trump’s 25 percent tariffs on Canadian goods go through. “If they want to try to annihilate Ontario, I will do everything — including cut off their energy with a smile on my face,” Ford told reporters at a mining convention in downtown Toronto, the Toronto Sun reported. Ford doubled down on his pledge to retaliate by matching tariffs, noting the U.S. is a major customer of Canada’s electricity. “They rely on our energy. They need to feel the pain. They want...