// BBC WORLD NEWS — MONDO
How Canada could hit back to hurt the US economy - and Trump
'Trump underestimates us': Doug Ford takes aim at US over tariffs
What leverage does Canada, which sells about 70% of its goods to the US, actually have in this spiraling trade dispute with its southern neighbour, who also happens to be the world's largest economy?
Canada is the top customer for 26 US states, including Maine, Michigan, and Wisconsin. And it is in the top three for 45 of the 50 American states, suggesting Prime Minister Mark Carney has room to manoeuver in a trade fight.
For now, Carney's planned Canadian retaliatory duties are strategic "dollar-for-dollar" countermeasures focused on steel, dairy, appliances, agricultural equipment, electronics, pulp and paper - though the list is still being finalised.
Polls suggest a majority of Canadians would be unhappy if his government went in the other direction and made significant concessions to the US. That sentiment is shared by Ontario Premier Doug Ford, one of Trump's most vocal critics north of the border, who responded to the tariff threats by telling the US president to "kiss my ass".
Here are some areas that Canada can apply economic pressure.
Carney noted on Saturday that Canada supplies the vast majority of US natural gas and electricity imports and about 60% of crude oil imports.
"I don't think they want us to stop sending any of that energy," he said.
Squeezing the US on energy is not in the current countermeasures, although various political officials have said explicitly it wasn't ruled out - and not all provincial premiers have been keen to use that leverage.
Ford, whose Ontario province is home to Canada's auto manufacturing industry, is open to how far the dispute could go and said that an "energy surcharge is on the table".