Alberta Premier Danielle Smith, fresh off a weekend visit with U.S. president-elect Donald Trump, cautioned Ottawa against blocking energy exports to the U.S. in response to Trump鈥檚 tariff threat on Monday 鈥� but Ontario Premier Doug Ford said he wants to keep the option open.

鈥淥il and gas is owned by the provinces, principally Alberta, and we won鈥檛 stand for that,鈥� Smith told reporters in a virtual news conference.

NDP Leader Jagmeet Singh, meanwhile, said Monday he wants to see Canada block exports to the United States of critical minerals like aluminum, lithium and potash in response to the tariff threat.

鈥淪o if (Trump) wants to pick a fight with Canada, we have to make sure it鈥檚 clear that it鈥檚 going to hurt Americans as well,鈥� Singh told a news conference in Ottawa.

Ford said that while an embargo on energy and critical mineral exports to the U.S. is the last thing he wants to see, Canada shouldn鈥檛 rule out any means to inflict economic pain on the U.S. if the tariff dispute escalates.

Canada鈥檚 critical minerals exports to the United States were valued at nearly $30 billion in 2023. That鈥檚 nearly 60 per cent of the value of all Canadian critical mineral exports.

鈥淚 want to ship them more critical minerals. I want to ship them more energy,鈥� Ford said. 鈥淏ut make no mistake about it. If they鈥檙e coming full-tilt at us, I won鈥檛 hesitate to pull out every single tool we have until they can feel the pain. But that鈥檚 the last thing I want to do.鈥�

Foreign Affairs Minister Melanie Joly hasn鈥檛 ruled out an energy embargo in response to Trump鈥檚 promise to impose punishing 25 per cent tariffs on Canadian products.

Smith said the federal government shouldn鈥檛 be making 鈥渆mpty threats,鈥� and it鈥檚 not Joly鈥檚 call to make. She said cutting off pipeline supplies through Michigan would choke key supplies to Ontario and Quebec as well.

If Ottawa moves to cut off energy exports, Smith said, 鈥渢hey will have a national unity crisis on their on their hands at the same time as having a crisis with our U.S. trade partners.鈥�

Alberta鈥檚 premier said Canada needs to be prepared for the tariffs to come into effect on Jan. 20, Trump鈥檚 first day in office. 鈥淚 haven鈥檛 seen any indication in any of the president鈥檚 public commentary, or even in the comments that he had with me, that he鈥檚 inclined to change his approach,鈥� she said.

Singh argued that the fact Trump still intends to implement broad-based tariffs after he and members of his administration met with Joly, Prime Minister Justin Trudeau and Finance Minister Dominic LeBlanc shows he can鈥檛 be reasoned with.

鈥淒onald Trump is not rational. You can鈥檛 discuss a plan over a meal with him. He is a bully. And bullies understand one thing 鈥� that is strength. They also understand pain,鈥� Singh said.

Singh added he sees a block on critical minerals exports as a starting point and Canada needs to continue to look at 鈥渆very option.鈥�

Over the weekend, Joly said Canadians need to 鈥渂e ready鈥� for economic threats, adding all leaders need to put Canada first and show a united front.

鈥淲e have to be very realistic, very pragmatic, and we have to be ready, because something we can鈥檛 do is not to take president-elect Trump at his word. Because when he says something, he usually does it,鈥� Joly said Sunday on CBC鈥檚 Rosemary Barton Live.

She said Ottawa is pursuing a strategy to engage the incoming U.S. administration through measures that include a new border plan, developing military alliances and co-operating on energy issues.

鈥淎nd at the same time, we鈥檙e working on a retaliation plan,鈥� said Joly.

鈥淚 can鈥檛 go into the details of that retaliation plan, because I think it would be a bad strategy. But what I can tell you is everything is on the table.鈥�

Smith visited Trump at his Florida home over the weekend as a guest of Canadian businessman and television personality Kevin O鈥橪eary.

O鈥橪eary has suggested that it would benefit Canada to combine its economy with that of the U.S. and 鈥渆rase the border鈥� separating the two countries.

Smith will be attending Trump鈥檚 inauguration next week. She has been on a diplomatic offensive of late, meeting with American elected officials and appearing on news broadcasts south of the border. She has argued the tariffs would harm both Canadian and American consumers, particularly through higher gas prices.

Smith said Monday the incoming president鈥檚 biggest source of irritation is the trade imbalance with Canada. She said she expects Trump鈥檚 promised tariffs to remain in effect until the imbalance is resolved.

鈥淚 think the solution is that we find ways to buy more American goods and that seems to me to be the very logical step that we should take. So I鈥檒l put that on the table,鈥� she said.

She and other premiers are expected to meet with Trudeau to discuss the issue on Wednesday.

Ahead of that meeting, Prince Edward Island Premier Dennis King is on his own economic mission to the northeastern United States, including Maine, Massachusetts and New Hampshire.

King is leading a 22-person delegation meeting with industry leaders, business associations and stakeholders to promote P.E.I.鈥檚 contributions to the potato and seafood sectors.

Smith said she鈥檚 鈥渘ot expecting any exemptions鈥� for the oil and gas industry, adding that 鈥渙ur job is going to be to work overtime to make sure that we can make the case for carve-outs.鈥�

When asked if excluding energy from tariffs might undermine the negotiating position of other premiers, or of Canada as a whole, Smith said she feels talking about energy is the 鈥渨ay we make the case鈥� to avoid tariffs on every Canadian product.

If Alberta鈥檚 energy exports were taken out of the trade equation, the Americans would have a trade surplus with Canada, she said.

鈥淭hat鈥檚 an argument that I think should allow us to say that we should continue to have a tariff-free relationship, because they need our energy,鈥� she said.

Alberta NDP Leader Naheed Nenshi said in a social media post Monday that while he hopes the premier鈥檚 attempts at diplomacy will be successful, the incoming U.S. administration poses a profound threat to all Canadians.

鈥淭he danger in freelancing is that Alberta becomes isolated, irrelevant, or, worse, used as a pawn in a bigger game. Only by working together can we ensure Albertan and Canadian interests are protected,鈥� he said.