Avoiding US goods and services – from tech to whisky to air travel – has forced many to find a new way of living

For William McDonald, 38, a diesel mechanic from Thunder Bay, Ontario, “Canadian is always the first choice,” even if it means his weekly bills are higher.

“As soon as Trump started putting those tariffs on in February [last year], I started boycotting US goods,” he said. “Avoiding American products has driven my costs up, and I’m still happy to do it.

With the federal deficit near 6% of GDP and the national debt over $40tn, America’s fiscal position looks increasingly precarious

• Bessent ‘will lose’ battle with bond markets, ex-mentor warns

Are we seeing the first signs of panic in Donald Trump’s Treasury? The US is by far the world’s biggest debtor, and the steady rise in global long-term interest rates – which I have long argued was inevitable – is starting to cause real pain.

Until now, the Treasury secretary, Scott Bessent, has dismissed concerns about US debt, which recently surpassed $40tn, as a big nothingburger. Growth, in his telling, will be so spectacular the US will easily be able to meet its interest obligations without any significant tax rises or spending cuts, while the rest of the world will happily keep feeding it money. But if Bessent really believes that, why is he trying to strong-arm the bond market by fiddling with the maturity structure of government debt?

Treasury secretary Scott Bessent’s attempt to calm bond markets is a sign of weakness not strength

“Look, there’s nothing magic about that $40tn number,” the US Treasury secretary, Scott Bessent, told CNBC insouciantly last week, as the country’s debt mountain surpassed another bleak record.

Yet Bessent’s decision to intervene in government bond markets in an effort to combat soaring yields belied his studied calm in TV interviews – and reignited fears the US may be on the road to a debt crisis.