As Canada prepares for U.S. President Donald Trump to unleash his trade war against Canada on Tuesday, Ontario’s ready to pull the plug.

Speaking Monday at a mining convention in downtown Toronto, Ontario Premier Doug Ford doubled down on threats to cut electricity exports to U.S. border states if the tariffs 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.

“They rely on our energy, they need to feel the pain. They want to come at us hard, we’re going to come back twice as hard.”