Trade War Reignites as Carney Rejects U.S. Terms, Triggering Tariff Storm and Market Uncertainty

Marcus Wong, Economy & Markets Analyst (Toronto)
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The fragile truce between Ottawa and Washington shattered in the final minutes before a Saturday deadline, plunging North America’s most critical economic relationship back into open conflict. Prime Minister Mark Carney walked away from a tentative agreement he said the White House attempted to rewrite at the eleventh hour, prompting President Donald Trump to unleash 50 per cent tariffs on US$28 billion of Canadian exports. Carney responded instantly, vowing “dollar-for-dollar” retaliation. The escalation marks a dangerous new phase in a dispute that has already rattled supply chains, unsettled capital markets, and forced Canadian households and businesses to recalibrate their exposure to the U.S. economy.

Tariffs Return with a Vengeance

The collapse occurred less than an hour before the 12:01 a.m. Saturday deadline. Trump and Carney had shaken hands on a framework earlier in the week, a development that had briefly calmed trading floors in Toronto and New York. The President paused his threatened levies to allow negotiators to finalize the text. But according to Carney, U.S. negotiators introduced “last-minute changes” that were “unfair, uneconomic and called into question the reliability of any deal.”

The Prime Minister recalled Canada’s negotiating team and declared the talks dead. Within hours, the U.S. tariff schedule activated, hitting steel, aluminum, automotive parts, and a broad slate of manufactured goods. Ottawa’s counter-measures are expected to mirror the U.S. list almost item for item, targeting American metals, agricultural products, and consumer goods.

Bay Street strategists spent the weekend modelling the impact. The consensus: a prolonged standoff could shave up to half a percentage point off Canadian GDP growth this year, while pushing inflation higher just as the Bank of Canada weighs its next rate move.

Bay Street Clamps Down on Prediction Markets

While politicians traded threats, Canada’s biggest lenders moved quietly to insulate their own ranks from a different kind of volatility. Royal Bank of Canada, Bank of Nova Scotia, Toronto-Dominion Bank, National Bank, and Manulife have all issued new directives barring or restricting staff from participating in prediction markets — platforms that allow users to wager real money on outcomes ranging from Bank of Canada rate decisions to quarterly earnings per share.

Bay Street Clamps Down on Prediction Markets

The platforms, relatively new to Canada, operate in a regulatory grey zone. They are not classified as securities exchanges, yet they trade on financial outcomes that insiders may influence or anticipate. RBC has imposed a blanket ban on employees subject to its personal trading policy. Scotiabank framed the prohibition under existing rules against speculating on financial markets or indexes. National Bank restricted the ban to its capital markets division. TD opted for a reinforced reminder of confidentiality and code-of-conduct obligations.

Compliance officers say the moves reflect a broader anxiety: the line between “betting” and “trading on material non-public information” is perilously thin. One senior compliance executive at a major Toronto dealer, speaking on background, described prediction markets as “insider risk dressed up as entertainment.”

RBC Doubles Down on Europe as North America Fractures

If the trade war is a headwind for North American finance, Royal Bank is setting its sails for calmer waters. Derek Neldner, head of capital markets, told analysts this week that Britain and Europe now represent the bank’s “single biggest growth opportunity” outside Canada.

The numbers back the ambition. In 2025, the U.K. and Europe generated $2.5 billion in capital-markets revenue for RBC — an 18 per cent share of the division’s total, up 33 per cent year-over-year. That growth outpaced Canada, the United States, and Asia-Pacific combined. Neldner projects the region could contribute 20 per cent of capital-markets revenue within three years, propelling RBC from 13th place globally into the top ten, a club currently dominated by Wall Street giants.

The push coincides with a strategic hire: Caroline Mulroney, former Ontario finance minister and daughter of the late prime minister, joins as vice-chair with a mandate to deepen relationships with global corporate leaders and sovereign wealth funds. Her appointment signals RBC’s intent to leverage political and diplomatic networks as trade alliances shift.

Travel Boycott Shows Cracks, But Scars Remain

Canadians appear to be tiptoeing back across the border. Statistics Canada reported 2.3 million return trips by residents to the U.S. in June, a 5 per cent increase year-over-year and the third consecutive monthly gain. The rebound was driven almost entirely by same-day car trips, which jumped 7.6 per cent. Air travel, by contrast, fell another 1 per cent to roughly 545,000 return flights.

Travel Boycott Shows Cracks, But Scars Remain

Context matters. June’s total remains nearly 25 per cent below the pre-tension baseline of June 2024. The “buy Canadian” sentiment that fuelled the boycott has not evaporated; it has merely softened at the margins. Retailers in border towns from Windsor to Niagara Falls report foot traffic is still well off 2023 levels. The tourism industry, which employs hundreds of thousands on both sides of the line, is lobbying both governments for a dedicated “trusted traveller” corridor to revive cross-border commerce.

Newfoundland’s Deepwater Gamble

Far from the tariff headlines, a different economic story is unfolding 500 kilometres off St. John’s. Equinor ASA, the Norwegian energy major, is advancing toward a final investment decision on the Bay du Nord project — Canada’s first deepwater oil development — slated for early 2027.

The company shelved the project in May 2023, citing runaway costs and weak economics. Since then, its St. John’s team has redesigned the concept, stripping out a fixed platform in favour of a floating production system tied back to existing infrastructure. The revised plan targets 300 million barrels of recoverable resource with a significantly lower breakeven price.

For Newfoundland and Labrador, the stakes are existential. The province’s fiscal health has long been tethered to offshore royalties; existing fields are in decline. Nova Scotia, watching closely, sees Bay du Nord as a proof-of-concept for its own shelved ambitions. Environmental groups, meanwhile, have vowed legal challenges, arguing the project undermines Canada’s net-zero commitments.

The federal government, which approved the environmental assessment in 2022, has been notably quiet of late. With a trade war raging and an election looming, Bay du Nord’s fate may hinge on whether Ottawa views energy security as a strategic counterweight to U.S. volatility.

Why it Matters

The simultaneous unravelling of the Canada-U.S. trade détente and the quiet restructuring of Canadian finance and energy exposure reveals a country in the midst of a forced diversification. Tariffs are the visible wound; the deeper shift is structural. Banks are retreating from regulatory grey zones at home while chasing revenue in Europe. Households are voting with their wheels, not their wings, signalling a permanent change in cross-border behaviour. And a deepwater oil project, once left for dead, is being resurrected as a hedge against continental instability. Canada is not merely weathering a trade dispute — it is quietly, urgently, rewriting its economic geography.

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