Will we pay for Trump’s bond market turmoil?

Summary of Will we pay for Trump’s bond market turmoil?

by ABC Australia

15m•September 7, 2026

Overview of ABC News Daily on Trump, Bonds and Rising Interest Rates

In this episode of ABC News Daily, Sam Hawley speaks with economist Justin Wolfers about the global bond sell-off, why long-term interest rates are rising around the world, and whether Donald Trump is to blame. The conversation explains how bond markets work, why the US is under pressure because of its massive debt and deficits, and what this means for Australians through higher borrowing costs, including mortgages.

What’s happening in the bond market?

  • A global bond sell-off is underway, which means bond prices are falling and yields/interest rates are rising.
  • The simplest way to understand it:
    • Bonds are how governments borrow money
    • When demand for loans rises, the price of borrowing goes up
  • Governments issue bonds because they borrow too much money for a bank to fund directly; investors buy those bonds in exchange for interest.

Why US debt is so important

  • The US government’s debt is enormous:
    • Gross debt: around $40 trillion
    • Debt held by the public (net debt): around $32 trillion
  • Wolfers notes that some of the gross debt is money the US government owes to itself, so net debt is the more useful figure.
  • US debt has grown through:
    • The 2008 global financial crisis
    • COVID-era spending
    • Trump-era tax cuts
    • Ongoing large budget deficits

Is Donald Trump to blame?

  • Partly, but not entirely.
  • Trump’s tax cuts added to the debt, but the current situation also reflects broader US fiscal problems and repeated crisis spending.
  • The transcript argues that Trump’s recent comments about the bond market were largely politically noisy but economically irrelevant.
  • The Treasury Secretary’s attempt to calm markets by buying back more bonds was described as:
    • Too small to matter
    • More of a technical move than a serious intervention
    • Quickly reversed by the market

What it means for Australia

  • Australia is not in the same debt danger zone as the US, but it is still affected because global interest rates move together.
  • When US bond yields rise, Australian borrowing costs are also pressured upward.
  • This can affect:
    • Mortgage rates
    • Business loans
    • Other long-term interest rates
  • The Reserve Bank’s cash rate is not the only thing that matters; global bond markets help set the cost of long-term borrowing.

Winners and losers from higher rates

  • Borrowers lose:
    • Mortgage holders
    • Governments with heavy debt
    • Businesses needing loans
  • Lenders win:
    • People with savings
    • Investors holding bonds or other fixed-income assets

How worried should we be?

  • Wolfers’ view: not a crisis yet
  • This is not a full bond market meltdown or financial collapse.
  • The main concern is that the US is behaving less like a fiscally disciplined advanced economy.
  • If markets ever believed the US could not pay its debts, borrowing costs could rise sharply in a dangerous feedback loop.

Key takeaway

  • The current bond sell-off is best understood as a rise in borrowing costs, not panic.
  • The biggest risks lie with highly indebted governments, especially the US.
  • For Australia, the likely effect is higher borrowing costs, but not an immediate fiscal crisis.
  • Still, if the US economy gets into serious trouble, Australia could feel the shock indirectly, just as it did during the 2008 financial crisis.