The 30-year Treasury yield passed 5.3% after the Federal Reserve's July press conference, its highest level in nearly 20 years, and on the day Treasury Secretary Scott Bessent said the government would at least double the size of its debt buybacks, the national debt crossed $40 trillion for the first time.
Treasury buybacks are ordinarily plumbing. The government buys back old bonds that have become hard to trade and replaces them with new ones, on a published schedule, and nobody reads anything into it. Bessent did it off schedule and promised to do more of it off schedule, and the market read it as price support that did not hold.
"Like, if you are going to take a shot at the bond market, you better kill it."
Robert Armstrong is the US financial commentator for the Financial Times and the author of its Unhedged newsletter, and he watched the intervention land from the FT's offices while the show was away on a two-week break.
I listened to the full segment so you can skip it. 17 minutes of audio, 10 minutes of reading.
Here are the 5 takeaways that matter.
👤 Guest: Robert Armstrong, US financial commentator for the Financial Times and author of its Unhedged newsletter
🎙️ Host: Ed Elson, who co-hosts Prof G Markets with Scott Galloway for Prof G Media
📰 Published: 1 September 2026 on YouTube (Prof G Markets)
🔴 YouTube | 🟢 Spotify | 🟣 Apple Podcasts | ⏱️ 17 min | ✅ Time saved: 7 min
Key Takeaways
An off-schedule buyback is a price-support operation, whatever it is called The routine version swaps old, illiquid bonds for new ones and is not meant to move prices Armstrong said the market read this one as the Treasury bidding for its own bonds, and it did not work
A failed intervention leaves the market worse than no intervention
The Treasury Secretary's first job is funding the government, which is why yields frighten him A couple of points on the interest rate swings the whole deficit
Warsh used Jackson Hole to take the dovish case off the table He said he does not find the recent soft inflation reports convincing He also said slowing wage growth does not tell you inflation will slow
The new Fed chair is not doing what the president wanted, and Armstrong does not think he has to
Warsh and Bessent want different things from the same balance sheet
1. Buybacks done off schedule
Ed Elson opened by asking what actually happened, since the show had been on vacation for two weeks and came back to the most chaotic stretch in the bond market in recent memory. Armstrong started with the normal version of the operation, because the whole story is the difference between the two.
The routine buyback is maintenance, not policy. "There is a normal action that the Treasury takes called buybacks, which is an effort to keep the Treasury market operating smoothly." Older bonds get harder to trade as they age — in his words, "It's like an old issue with a weird interest rate, and there's not that much of it around" The Treasury buys those in and replaces them with newly issued bonds that trade easily, and has done so regularly for a couple of years
What made this different was the timing and the promise of more. Armstrong said Bessent did it off schedule and then said he would do even more of it off schedule
Nobody took the plumbing explanation. Armstrong said the operation looked transparently, to everyone in the world, like an effort to prop up the price of bonds by buying them
The Treasury also floated paying for it out of its own checking account. Officials suggested the Treasury General Account might be used for these operations in future, which would be new "The Treasury General account is the Treasury's checking account, basically. Basically, it's where your tax dollars go and where the spending comes out of."
It was a shock tactic that failed, and a failed shock is worse than none. "So it was an attempt to shock the market and get a stronger bid for bonds. And it didn't really work." He pointed to Japan as the standing example: when these operations do not work, they tend to make things worse "Like, if you are going to take a shot at the bond market, you better kill it."
Elson pushed on the implication — that intervening in an unusual way suggests something is wrong to begin with — and asked whether there was. Armstrong's answer was that things got worse after the intervention but not dramatically so: "Well, they didn't get way worse, but they did get worse."
2. Yields make funding harder
The underlying problem is not a crisis, it is a drift. Armstrong said what was wrong to begin with is that yields are creeping higher, and have stayed high since Fed Chair Kevin Warsh's second press conference in late July — "coincidentally or not", as he put it
Why that lands on the Treasury Secretary rather than the Fed chair. "And the job description of the Secretary of the Treasury, line one is fund the U.S. government."
On a debt this size, small rate moves are large budget items. A couple of points of difference in the interest rate on the debt really swings the total deficit, he said
The failure mode is a loop, not a level. "And you can get into a really bad spiral where the deficit gets worse because interest rates are higher." Investors then worry more about whether the debt is sustainable, push yields higher again, "and you're off to the races" "So you can see why the Treasury Secretary would be nervous."
3. Trump names the military
The show played the exchange in which President Trump was asked whether he had directed Bessent to intervene. He said he had not, called the Treasury Secretary "a very capable man" and added, "He is a good touch, very good natural touch for the bonds and interest." Asked whether another intervention was coming, he went somewhere else entirely.
The president listed the military among the tools. "We have many types of intervention. That's one. The ultimate intervention is our military. And if we have to use that, we will."
Armstrong took the remark apart by taking it literally. "Are we going to bomb the bond markets? Or is it going to be a boots on the ground kind of thing?" He carried the image through: "Where American lives are a risk, where you have like soldiers in the offices of investment banks, exchanging fire with bond traders on the trading floors."
He offered no reading of it, which was the point. "I mean, it was an absolutely wild comment and there's no explaining it. But it caused some good laughs around the FT offices."
4. Warsh clarified, hawkishly
Elson noted that the probability of a September rate hike moved after the Jackson Hole speech, in prediction markets and in CME pricing, and asked what the speech actually said.
Armstrong's read of Warsh's first months was that markets could not tell what he would do. "I would describe the performance of Warsh in his first two press conferences at the Fed as a bit vague." Warsh said he did not want to give forward guidance and used a referee-and-ball metaphor that Armstrong said does not apply neatly here Armstrong said the case for a quieter central bank is a real one — "And I definitely think Warsh has an argument to make when he says it would be better if the Fed would shut up once in a while" — but that Warsh had not been clear about how far he meant to take it For a new chair, at a time when outsiders are already worried about the Fed's independence, that vagueness created uncertainty
The Jackson Hole speech was the clarification, and it came out hawkish. The most important line, Armstrong said, was that inflation is not getting better "He specifically said, I don't find those reports convincing. The underlying trend is not improving. It was very emphatic." This matters because Warsh had been shakier on that point in his confirmation hearing and since
He also removed the main dovish argument. Warsh said he does not think slowing real wage growth means inflation will slow "He came out and said, look, I don't think wage growth is a very good indicator of future inflation." That is the series doves point to, Armstrong said, so taking it off the table was a deliberate move
The market heard it immediately. Armstrong said Warsh described an economy in which the Fed has to be biased toward tightening rather than loosening, and positioning changed the same day He raised, and left open, the philosophical question of whether a characterization of the economy that precise amounts to forward guidance by another route
It is the opposite of what the White House wanted. "Notably, it is exactly what Trump did not want." Warsh was widely expected to be the compliant chair who delivered what the president asked for, Armstrong said, and the Fed's independence was expected to weaken under him
5. Bessent's hot seat
Elson asked where this lands politically with midterm elections coming, given that Bessent's message has been that everything is fine.
Armstrong does not think the Fed chair is under real pressure from the president. "The first thing would I say is I don't think Chair Warsh has much to fear from Trump." "I think the Trump-Powell wars proved that Trump's efforts to meddle with the Treasury will come to nothing" "And I think Warsh has his eyes on history, not on a lame duck president."
Warsh's diagnosis is half good news. He said the economy is strong and that he is content with the employment side of the Fed's mandate, which Armstrong said he thinks is correct at 4.1% employment. Inflation is the bad half
The administration's wish list does not fit together. A Treasury Secretary would want low short-term rates and proportionately lower long-term rates at the same time — inflation expectations contained, mortgage costs contained — and Armstrong said you cannot reliably have both "Because if you loosen at the short end, the long end has a way of getting away from you"
That leaves the Treasury Secretary squeezed from both sides. "I think Scott Bessent is in a pretty tough position being stuck between the bond market and the president of the United States. I think it's a hot seat right now."
The deeper conflict is about what a central bank is for. "Kevin Warsh has a long history of writing about one of the bad things he thinks central banks can do is enable governments to spend a lot of money." It is why he dislikes quantitative easing and a large Fed balance sheet, and he has staked his reputation on the Fed not underwriting fiscal policy "And I think probably Bessent would like a little bit of fiscal bad behavior enabled if he could possibly have that" — not because he is a bad guy, Armstrong said, but because that is what administrations do
Whether the two men are working to the same end, Armstrong would not say: it does not look to him as though they are fundamentally at odds, but he does not know whether they are talking
Bonus Insights
The market vitals Elson read at the top set the backdrop. The major indices declined as the United States and Iran exchanged fire for the first time in a month, Brent crude climbed and the 10-year Treasury yield rose
Amazon shares fell nearly 3% after the Federal Trade Commission sued the company, claiming it overcharged advertisers
The buyback numbers came from the show's own setup, not from Armstrong. Elson said Bessent had announced the government would "at least double the size of its debt buybacks", raising the cap per operation from $2 billion to more than $4 billion, with the stated goal of supporting liquidity and pushing long-term borrowing costs down. Yields fell at first and then climbed back
Elson also cited Warsh's own framing from the July press conference: the central bank is "trying not to interfere with that market signal", the argument being that investors should trade the economy rather than the Fed's forecasts
Armstrong could not remember the exact date of the intervention, and said so rather than guessing
This was the first of two guest segments in the episode; the OpenAI and Hugging Face conversation with Deirdre Bosa is written up separately
Armstrong's bottom line is that the Treasury tried to talk the bond market up, failed, and now sits between a president who wants cheap money and a Fed chair who has built a career on refusing to supply it.
Products, Companies & Tools Mentioned
US Department of the Treasury (Ran the off-schedule buybacks and floated using the Treasury General Account for future operations)
Federal Reserve (Warsh's July press conferences and his Jackson Hole speech are what moved yields, on Armstrong's account)
Amazon and the Federal Trade Commission (Amazon shares fell nearly 3% in the session Elson recapped, after the commission sued the company claiming it overcharged advertisers)
CME Group (Where Elson watched the odds on a September rate hike move after Jackson Hole, alongside prediction markets)
Books & Resources Mentioned
Unhedged (Armstrong's Financial Times newsletter, named on air as what he writes)
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