We compared their economic plans after Trump changed the rules. Now Canada faces another question: can either plan work if the rules keep changing?

North of Polite | September 12, 2026

When North of Polite previously compared Mark Carney’s and Pierre Poilievre’s economic approaches, we asked a fairly straightforward question:

Which plan makes more sense in the middle of a Canada–U.S. trade war?

The problem is that the trade war hasn’t stood still.

Since then, Canadian counter-tariffs have taken effect, businesses have begun changing supply chains, an Ontario auto plant has moved closer to a possible second life in defence manufacturing, Mexico has accelerated separate negotiations with Washington, and Donald Trump is once again suggesting that an agreement with Canada may be possible.

None of that means Canada is winning.

It doesn’t mean Canada is losing either.

It means both Carney’s and Poilievre’s economic arguments now have more real-world evidence against which they can be tested.

FIRST, WHERE THINGS ACTUALLY STAND

Canada and the United States still do not have a new trade agreement.

After negotiations collapsed in August, the United States imposed 50% tariffs on roughly C$27.6 billion worth of Canadian goods. Canada responded with counter-tariffs of 15%, 25% and 50% covering C$27.6 billion of U.S. imports. Those Canadian measures took effect September 8 and target products including steel, dairy, appliances, agricultural equipment, pulp and paper, electronics and other goods.

On September 12, Trump said he believes a deal with Canada could come “fairly soon.”

That is noteworthy.

It is not a deal.

There are no publicly announced terms, no announced negotiating framework and no agreement to evaluate. Until something concrete emerges, Trump’s statement should be treated as a negotiating signal rather than evidence that the dispute is ending.

That distinction matters.

Canada cannot build an economic strategy around what Donald Trump might say tomorrow.

It has to build one around what the United States is actually doing.

THEN THERE’S MEXICO

This may be the most consequential development since our original comparison.

Reuters reported September 11 that Mexico and the United States are racing to negotiate an interim bilateral trade agreement before the November 3 U.S. midterm elections.

The discussions include potential tariff relief for Mexico and American demands involving automotive content and Chinese investment. The urgency of those negotiations has increased following the collapse of Washington’s negotiations with Canada.

Nothing has been signed.

But Canada should pay attention.

For decades, Canadian economic strategy has rested partly on participation in an integrated North American market.

If Mexico were eventually able to secure substantially better access to the United States while Canadian manufacturers remained behind tariff barriers, the competitive implications could be serious—particularly for industries such as automotive manufacturing.

So here’s a new test for both Carney and Poilievre:

What is your plan if Mexico gets a deal before Canada does?

Neither side gets to answer that question with slogans.

CARNEY’S STRATEGY IS STARTING TO BECOME TESTABLE

Carney’s response has increasingly rested on three ideas:

Protect Canadian industries during the disruption. Build more at home. Diversify Canadian trade abroad.

Ottawa has now committed another $7.5 billion in tariff-related support, including $1.5 billion for regional business assistance, $500 million in additional BDC liquidity support, $2 billion through the Canada Strong Diversification Fund and $3.5 billion in worker and employer supports.

That is real government action.

But government announcements are not economic results.

The important question is whether that money actually preserves viable businesses, increases productivity and helps companies reach new markets—or merely subsidizes losses caused by a prolonged trade war.

There are, however, early signs that diversification is happening outside government.

Reuters reported September 12 that Canadian grocers are changing sourcing patterns as consumers avoid American products. Some are increasing purchases from Canadian suppliers while others are sourcing products from countries including Spain and Brazil.

The American share of Canadian vegetable imports fell from 69% in 2023 to 62.6% by July 2026.

That doesn’t prove Carney’s broader diversification strategy is succeeding.

Consumer groceries are very different from automobiles, steel, aerospace or energy.

But it does demonstrate something important:

Canadian dependence on American supply chains is not necessarily fixed.

AND PRIVATE CAPITAL IS MOVING

Another development strengthens Carney’s argument—but again requires an important qualification.

BMO and Sun Life have announced plans to mobilize a combined C$75 billion in private capital for Canadian infrastructure and strategic investments. BMO’s commitment is up to C$70 billion over ten years, while Sun Life announced a C$5-billion initiative.

Power Corporation has separately announced plans involving another C$10 billion.

Those are significant numbers.

But they are commitments, not C$85 billion worth of completed projects.

Carney’s challenge is therefore straightforward:

Turn announcements into construction.

Turn construction into productive assets.

And turn those assets into economic growth that makes Canada genuinely less vulnerable to American pressure.

If that doesn’t happen, the size of the announcement won’t matter.

POILIEVRE’S ARGUMENT HASN’T DISAPPEARED

Pierre Poilievre’s response is different.

The Conservatives argue that Canada’s strongest negotiating leverage ultimately comes from making the Canadian economy more productive, resource-rich and self-reliant.

Their current proposals include creating a Strategic Energy and Mineral Reserve for tariff-free allies, negotiating a tariff-free auto pact, protecting Canadian technology and intellectual property and accelerating resource development through repeal of laws including C-69 and C-48.

There is economic logic behind part of that argument.

Canada possesses resources the United States and other countries need.

Increasing production, infrastructure and export capacity could give Canada more options and potentially more leverage.

But Poilievre’s plan faces the same test we’re applying to Carney:

How quickly can it actually work?

A mine doesn’t appear because Parliament changes a law.

A pipeline isn’t built because a politician announces one.

Ports, transmission lines, processing plants and energy projects require investment, construction, regulatory approvals, Indigenous consultation and—in many cases—years of development.

Poilievre may therefore be right that Canada needs to make itself economically harder to push around.

But that doesn’t automatically mean his proposed reforms can protect a factory facing tariffs today.

BRAMPTON SHOWS WHY THIS ISN’T AN ACADEMIC DEBATE

The Stellantis assembly plant in Brampton may become one of the clearest examples of what this trade war can mean on the ground.

More than 2,000 workers were laid off when the plant stopped operating. Stellantis had planned Jeep production there but later moved Compass production to the United States, with tariffs cited as part of the company’s response.

Stellantis has now signed a memorandum of understanding with Canadian armoured-vehicle manufacturer Roshel regarding a potential sale of the Brampton facility.

That sale has not been completed.

And Unifor strongly disputes the idea that defence manufacturing can simply replace automotive assembly, arguing that automotive manufacturing brings a much larger supply chain and broader regional economic activity.

That caution is important.

Still, something significant is happening.

An idled Canadian auto plant threatened by changing North American economics is being considered for another form of advanced manufacturing.

Whether Brampton becomes an isolated case or the beginning of a broader industrial transition is something Canada should be watching closely.

SO WHOSE PLAN LOOKS BETTER NOW?

The answer remains frustratingly unsatisfying for anyone looking for a partisan victory:

Both men are identifying genuine parts of Canada’s problem.

Carney is increasingly right about one thing that has become difficult to dispute:

Canada cannot assume its old economic relationship with the United States will simply return.

Building alternative markets, Canadian infrastructure and domestic industrial capacity is becoming a matter of economic security.

But Carney’s weakness remains cost and execution.

Billions in support programs and enormous investment commitments only become successful economic policy if they produce competitive businesses, infrastructure, exports and jobs.

Poilievre is also right about something important:

Canada cannot subsidize its way to economic independence.

A country with enormous energy, mineral, agricultural and industrial resources should be asking whether taxes, regulation, permitting and infrastructure are preventing those advantages from becoming actual economic leverage.

But Poilievre’s weakness is time.

Structural reforms that increase investment and resource production over five or ten years don’t necessarily save workers facing layoffs next month.

THE TRADE WAR HAS CHANGED THE QUESTION

Our original comparison asked which economic plan was better suited to survive Trump’s trade war.

The evidence accumulating since then suggests that may have been too narrow.

Canada now has to prepare for several possibilities simultaneously.

Trump could negotiate a deal with Canada.

The dispute could continue.

Mexico could obtain preferential treatment first.

American industrial policy could continue pulling investment south even after some tariffs are removed.

And Canadian businesses may continue diversifying regardless of what Washington ultimately decides.

That means Canada’s strongest strategy may not come entirely from either political camp.

Canada needs Carney’s emphasis on diversification, infrastructure and strategic investment.

It also needs the pressure Poilievre is applying around competitiveness, resource development, productivity and the cost of government.

And both approaches need something Canadian governments have historically struggled with:

speed.

Because perhaps the biggest lesson of this trade war isn’t that Canada needs to choose between Mark Carney’s economy and Pierre Poilievre’s economy.

It’s that Canada can no longer afford an economy that depends on Washington remaining predictable.

NORTH OF POLITE VERDICT

Carney’s case has strengthened on diversification and industrial resilience.

There is now evidence of businesses changing supply chains, substantial private-capital commitments and government programs specifically intended to help Canadian companies adapt.

Poilievre’s case remains strong on competitiveness and economic leverage.

Canada still needs faster development, greater productivity and the ability to turn its extraordinary natural-resource advantages into actual economic power.

Neither side has proven its model yet.

And Trump’s suggestion that a deal could arrive “fairly soon” doesn’t change that.

Because even if Canada and the United States sign an agreement tomorrow, the events of the past year have already demonstrated something Canada would be foolish to forget:

Access to the American market is enormously valuable. Dependence on it is enormously dangerous.

© 2026 North of Polite. Original reporting, analysis and commentary. All rights reserved. 🍁

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