Warsh, Bessent and Who Sets Interest Rates Now

Kevin Warsh is about to deliver his first Jackson Hole keynote as Federal Reserve chair on this  Friday morning, three months into the job and into the most awkward set of circumstances a new chair has faced in years. He has run two policy meetings since taking office in May, holding the federal funds rate at 3.50 to 3.75 percent both times, and has deliberately refused to give markets the forward guidance they had grown used to under his predecessors.

The backdrop is not comfortable. Core PCE inflation, the Fed's preferred gauge, sat at 3.3 percent in July, unchanged from June, with the headline rate at 3.7 percent. The disinflation has not reversed so much as stopped. Meanwhile the 30-year Treasury yield has been trading around 5.25 percent after touching its highest level in roughly nineteen years, and futures pricing going into Friday put the odds of a September rate hike at roughly one in three, with a hold as the base case.

Into that, the Treasury Department has stepped directly into the bond market. On 19 August it announced it would at least double the size of its debt buyback operations, from 2 billion dollars to at least 4 billion, running from 9 September through 4 November and aimed squarely at the 10-to-30-year part of the curve. Yields fell, then erased the entire move within about 48 hours. Which raises the question that ran beneath the symposium as market subtext, even though its stated topic this year was financial innovation and its implications for payments and policy: if the Treasury is now trying to manage long-term interest rates, what exactly is the Fed for?

In this article we explore what the 1951 Treasury-Fed Accord settled, why the Treasury's recent bond and currency interventions have reopened a fight most people assumed was closed permanently, what Warsh's proposed new accord would actually do, and what fiscal dominance would mean in practice for savers, borrowers and the dollar.

What the 1951 Accord Actually Settled

Before 1951, the Federal Reserve had a standing commitment to keep interest rates on government debt low, so that the Treasury could finance the war effort cheaply. In practice that meant the Fed bought whatever quantity of bonds was necessary to hold yields down. Monetary policy was not an independent judgment about inflation. It was a subsidiary of debt management.

On 4 March 1951 the two institutions issued a joint statement of a single sentence, agreeing on debt management and monetary policy in a way that would fund the government while minimising what they called monetisation of the public debt. Monetisation is the plain thing it sounds like: the central bank creating money to absorb government borrowing.

Alan Greenspan later described the pre-1951 arrangement as one in which monetary policy was effectively subservient to a Treasury that wanted cheap credit, and the accord as the moment the Fed began to develop its modern independence. That is the frame worth holding onto. The accord was not a treaty with enforcement provisions. It was a norm, established by two institutions agreeing in public that one of them would stop doing something.

Why the Fight Came Back

Norms hold until someone tests them. Three things have tested this one in 2026.

The buybacks

A Treasury buyback is the government repurchasing its own outstanding bonds in the secondary market, usually justified as supporting liquidity in older, less-traded issues. Doubling the size of those operations and pointing them at the long end changes the character of the exercise. Scott Bessent was explicit that the announced ceiling was a floor rather than a limit, and that part of the point was signalling, saying yields do not reflect the underlying fundamentals.

That is a debt manager making a public judgment about the correct level of long-term interest rates. The rally lasted less than two days: the 30-year rose back above where it started, and the 10-year gave up its decline.

The currency leg

In July, Bessent used Treasury funds to support the Japanese yen, but chose to sell euros rather than dollars in the transaction. He also pressed the Fed to expand a facility that would allow Japan to borrow against its Treasury holdings rather than sell them for future interventions. Japan is one of the largest foreign holders of US government debt. A facility that lets a major holder lend its Treasuries instead of dumping them is, in effect, a mechanism for keeping supply off the market at moments of stress.

The rate question

All of this sits on top of a Fed that has not moved. Inflation has been above the 2 percent target for years, the committee is visibly split, and the President has kept up public pressure for cuts. Every step the Treasury takes to hold long yields down is a step that loosens financial conditions the Fed may need tight.

What Warsh Has Actually Proposed

Here is the twist that most coverage under-explains. Warsh's call for a new accord is not, in its original form, a request for the Fed to help the Treasury. It is close to the opposite.

His long-standing argument is that quantitative easing, the practice of the central bank buying large quantities of bonds with newly created reserves, allowed Congress and successive administrations to run up debt cheaply, and that the spirit of the 1951 accord is at odds with recent practice. He wants a smaller Fed balance sheet, which currently holds roughly 6.7 trillion dollars in financial assets.

The mechanism he floated in 2025 is the awkward part. He suggested the Treasury Secretary would need to find any proposed major change in Fed holdings acceptable, on the grounds that such a change is partially fiscal policy in disguise. He has described the appeal as coordination and clarity: the Fed states its target for the size of its balance sheet, the Treasury states its issuance calendar, and markets can see where both are heading.

There is a real logic there. Shrinking the balance sheet and lengthening the maturity of debt issued to the public are two halves of the same operation, and doing them blindly against each other is how you get accidents. But a veto is a veto. Giving a cabinet secretary a say over the size of the central bank's portfolio is a structural change, and structures outlive the intentions of the people who build them.

Fiscal Dominance, in Plain Words

Fiscal dominance is the condition in which the government's borrowing needs, rather than the inflation outlook, determine monetary policy. It rarely arrives by announcement. It arrives when the arithmetic of the debt makes the alternative unthinkable.

The sequence looks like this. Deficits are large and interest costs on federal debt have passed a trillion dollars a year. Long yields rise because investors demand more compensation to hold long paper, which raises the cost of every future refinancing. At some point the level of rates required to bring inflation to target is a level the fiscal position cannot absorb. The central bank then faces a choice it does not want to describe out loud, and quietly chooses the debt.

The telltale signs are not dramatic. They are a central bank that keeps finding reasons why above-target inflation is temporary, a definition of financial stability that expands to cover ordinary yield increases, and a growing set of official operations whose stated purpose is liquidity and whose actual effect is price support.

What It Would Mean for Savers and Borrowers

The distributional consequences of fiscal dominance are the part that touches ordinary balance sheets.

• Savers lose first. If policy rates are held below inflation, cash and short-dated bonds deliver a negative real yield, meaning the return after inflation is less than zero. The loss is invisible on a statement and total over a decade.
• Long-term bondholders lose second, and more violently. Holding down a yield does not remove the inflation risk, it postpones the repricing.
• Borrowers with fixed-rate debt gain, because inflation erodes the real value of what they owe. Mortgage rates around 6.75 percent are painful now, but a 30-year fixed loan taken in a period of rising inflation is a transfer from lender to borrower.
• Governments are the largest fixed-rate borrower of all, which is precisely why the temptation exists.

The subtler cost is informational. If long yields are being managed rather than discovered, then the yield curve, the relationship between short and long-term interest rates, stops being a reliable signal of what markets expect. Everyone from pension trustees to mortgage lenders prices off that curve.

What It Would Mean for the Dollar

A reserve currency is a claim on a promise. The promise is that the issuing country will not inflate away the real value of the assets foreigners hold. The 1951 accord is one of the institutional foundations of that promise for the United States.

Markets have already been trading a version of this question. Gold rallied and bitcoin jumped sharply after the Treasury's buyback announcement, as investors began pricing the possibility of eventual Fed-backed support for the long end of the curve. Assets with no issuer and no yield do well when the credibility of the issuer of yield is in doubt. That is the entire thesis in one sentence.

The irony is that a genuinely hawkish Fed would probably do more for long bonds than any buyback. Investors going into Friday argued that a clear commitment to price stability could trigger buying of the 30-year and bring yields down from their highest levels since 2007. Credibility is cheaper than intervention.

What to Watch From Here

The useful signals are institutional rather than rhetorical.

• Whether the enlarged buyback programme from 9 September is extended, expanded again, or quietly allowed to lapse.
• Whether any Fed facility is broadened in ways that make it easier for foreign holders to avoid selling Treasuries during stress.
• Whether the September meeting produces a hike, and how large the dissent is in either direction.
• Whether a new accord, if one is ever drafted, is published in full.
• The spread between the 2-year and 30-year yields. A curve that steepens while short rates stay put is the market saying it does not believe inflation will be contained.

Key Takeaways for Investors

• The 1951 accord ended a period when the Fed pegged yields to serve Treasury financing. It was a norm, not a law, and norms can be renegotiated.
• Warsh's proposed accord was originally about shrinking the Fed balance sheet and restraining monetisation, but its mechanism would hand the Treasury Secretary influence over Fed holdings. Intent and structure are different things.
• The Treasury's doubled buybacks and its yen intervention have made the Treasury an active price-setter in markets the Fed traditionally influenced. The buyback rally fizzled within two days, which says something about the limits of the tool.
• Fiscal dominance taxes savers through negative real yields and rewards fixed-rate borrowers. It is a slow transfer, not an event.
• Above-target inflation at 3.3 percent core with a 30-year near 5.25 percent means the market is demanding compensation for exactly this risk. That compensation is the price of ambiguity.

Conclusion

The reason a first Jackson Hole keynote matters is that it is where a chair reveals how he thinks, not what the committee decided. But the deeper issue this year is not a reaction function. It is that the question of who sets long-term interest rates in the United States, settled in a single sentence in March 1951, has been quietly reopened by an activist Treasury and a Fed chair who arrived arguing that the old settlement had already been eroded from the other direction.

Both things can be true. The Fed's post-2008 bond buying did blur the line between monetary and fiscal policy, and a Treasury buying its own long bonds to signal that yields are wrong blurs it further. The danger in redrawing the boundary is that whoever holds the pen is negotiating with a counterparty whose total public debt outstanding crossed 40 trillion dollars in August 2026 and who has an election calendar. Institutional independence is not a thing you have. It is a thing you keep demonstrating, and the demonstrations are always inconvenient at the moment they are required.