US President Donald Trump on 16 September 2026 threatened to impose steep tariffs or curtail trade with Europe if a potential Canada–European Union arrangement was perceived as directed against American interests. The warning came during remarks to reporters at Charlotte Douglas International Airport in North Carolina, where Trump also voiced hope that the conflict with Iran was approaching its conclusion.

The Tariff Warning

Trump's remarks were framed as conditional — triggered specifically by what he interpreted as the intent behind any Canada-EU arrangement. Asked about the prospect of Canada becoming an associate member of the European Union, he dismissed the likelihood and sharpened his criticism of Canada as a trading partner.

'Canada's been a terrible trade partner. No, I don't see that. If they do that, if I think it's at all a hostile act, I will put very serious tariffs or stop trading with Europe on many things,' Trump said.

He subsequently elaborated, drawing a distinction between good and bad intent on Europe's part: 'If they do that, if Europe does that, with a bad intention — if it's a good intention, that's fine — if it's bad intention we'll put very heavy tariffs on Europe, which is a possibility.'

Notably, Trump did not announce a specific new tariff, identify which European goods could face restrictions, or provide a timetable for any action. His remarks described a potential response to a hypothetical scenario raised during questioning, not a formal policy announcement.

Trump Defends Trade Deficit Logic

During the same airport exchange, Trump also defended his broader approach to trade deficits, arguing that halting trade with a country against which the United States ran a deficit would effectively eliminate that shortfall. He did not outline the consequences for American businesses or consumers, nor did he identify a specific trading relationship he planned to end.

This comes amid a broader pattern of Trump using tariff threats as negotiating leverage against both allies and rivals — a strategy that has drawn criticism from trade economists who warn of retaliatory cycles and supply chain disruption.

Trump on Iran: 'Towards the End of the War'

Turning to the conflict with Iran, Trump expressed cautious optimism, saying Tehran was signalling a desire to negotiate. 'Hopefully we're towards the end of the war. They want to make a deal, and we'll see how that works out. They're very much wanting to make — Iran is very much wanting to make a deal,' he said.

He offered no timetable, no specific terms, and no details of any proposed settlement. The remarks were unverified by any Iranian official statement at the time of the airport exchange.

What to Watch

The remarks are likely to draw a response from European Union officials, who have previously warned of countermeasures in the event of fresh US tariff action. Any formal move by Canada toward EU associate membership — itself a speculative scenario — would raise immediate questions about transatlantic trade alignments. Markets and diplomatic observers will track whether Trump's conditional warning is followed by any concrete executive action in the days ahead.