Scott Bessent launches Treasury twist to curb yields as US debt hits $40 trillion

Treasury interventions and declining yields

US Treasury Secretary Scott Bessent has initiated tactical market interventions designed to suppress government borrowing costs, a strategy dubbed the Treasury twist. Technical indicators in the bond market indicate that the gap between Treasury yields and equivalent swaps has narrowed, pointing to improved investor appetite for sovereign obligations. Benchmark borrowing costs have retreated since the middle of August. The 30-year Treasury yield, which reached a 19-year high of 5.31% on 17 August 2026, decreased to 5.19% by the morning of 26 August. Meanwhile, the 10-year Treasury note yield declined from 4.72% to 4.66% across the same window. Wall Street firms are war-gaming potential structural adjustments to federal debt issuance, including a Deutsche Bank scenario where the government cuts sales of long-dated bonds.

Jason Williams, head of US rates strategy at Citi, described the tactical posture as a protective backstop for bond investors:

This new Treasury 'put' improves the asymmetry of owning the long end by providing a potential light backstop.

National debt expansion and shifting consensus

The tactical debt management occurs as the total US national debt surpassed $40 trillion in August 2026. The milestone has coincided with a shift among fiscal economists, many of whom previously dismissed debt concerns during the low-rate regime of the 2010s. The average interest rate on US public debt has risen from roughly 1.5% in 2021 to approximately 3.4% in 2026, while 30-year Treasury yields have more than doubled across the same five-year timeframe. Martha Gimbel, executive director of the Budget Lab at Yale, noted that economists are revising earlier assumptions because borrowing costs are expected to stay elevated. Upward rate pressures stem from Federal Reserve inflation responses, heavy corporate credit demand tied to artificial intelligence investments, and investor caution regarding long-term fiscal stability.

Deficit concerns and economic headwinds

Despite early yield declines, prominent market figures warn that tactical market operations cannot resolve underlying fiscal imbalances. Investor Stan Druckenmiller argued that heavy government deficits remain the primary cause of higher yields, limiting the effectiveness of administrative interventions. Furthermore, blunting the bond market's inflation signal carries the risk of backfiring on investors if underlying borrowing remains elevated. In the wider economy, inflation-adjusted US consumer spending stalled in July following increases in May and June, while personal consumption price gauges matched expectations.

European sovereign debt strains

Similar sovereign debt pressures are emerging across Europe ahead of government budget negotiations commencing in September. European sovereign markets face tighter conditions caused by inflation from the Iran oil shock, European Central Bank rate hikes, and volatility in US and Japanese government debt. In France, 10-year government bond yields have reached their highest mark in 18 years, pushing the spread over German Bunds back to levels seen two years ago and depressing domestic bank equities. Davide Oneglia of TS Lombard warned that political fragmentation ahead of the April 2027 presidential election risks delaying budget passage, potentially widening France's deficit by 0.5 percentage points toward 6% of gross domestic product. In Italy, 10-year yields trade unusually below French debt, though Prime Minister Giorgia Meloni confronts political friction from the Futuro Nazionale party. In Germany, Chancellor Friedrich Merz contends with weak approval ratings ahead of three state elections where the Alternative for Germany party is polling strongly.