Thirty-year Treasury yields have surged to levels last seen in 2007, the Treasury Department has abruptly doubled its buyback program, and behind the market quotations lies a far more troubling story involving artificial intelligence, the war with Iran, and a changing of the guard at the Federal Reserve.
The U.S. Treasury market is not panicking. Day after day, methodically, it is presenting the bill for two decades of fiscal irresponsibility, and the amount on that bill is rising faster than the American economy can cover it.
On August 18, the yield on thirty-year Treasury bonds climbed to 5.33 percent, its highest level since June 2007, that same summer when the world had yet to become familiar with the term “subprime” and had no idea that Lehman Brothers would collapse a year later.
Five days earlier, the Treasury had auctioned a new $25 billion issue of the same securities at a yield of 5.216 percent, a rate not seen since 2001, when the department temporarily stopped issuing ultra-long-term debt altogether.
Meanwhile, total U.S. national debt has surpassed $40 trillion, and for all the symbolic weight of that figure, investors are far less concerned about the number itself than about the speed at which it is growing.
The Treasury Is Already Fighting the Fire: Washington Has Begun Buying Back Its Own Debt
Treasury Secretary Scott Bessent reacted the way firefighters do, not observers: on August 19, his department unexpectedly announced that it would double the size of its long-term debt buyback program, raising the maximum amount per operation from $2 billion to at least $4 billion.
The decision takes effect on September 9 and will remain in force through November 4, covering securities with maturities ranging from ten to thirty years.
Formally, this is a technical measure designed to support liquidity. In substance, it is an acknowledgment that Washington has recognized the problem and is prepared to spend taxpayer money to keep the price of its own debt under control.
Why Investors Are Demanding More and More From the United States
Long-term bond yields are rising for two reasons, and both are now operating simultaneously.
The first is a classic imbalance between the demand for borrowed funds and their supply: when the government borrows more than the market is willing to provide at the previous price, the cost of borrowing, meaning the yield, rises.
The second reason is subtler and more dangerous: investors are pricing in a risk premium because they are not convinced that the authorities will keep inflation under control or refrain from solving the debt problem with the printing press, thereby eroding the real value of future payments.
A Trillion Dollars in Interest: Debt Is Beginning to Devour the U.S. Budget
The U.S. federal budget deficit in fiscal year 2026, according to the Congressional Budget Office, is approaching $1.9 trillion, or roughly 6 percent of GDP.
For an economy that is officially growing and is experiencing neither a pandemic nor a recession, a deficit of this size is an anomaly, not a normal feature of countercyclical policy.
Donald Trump promised to reduce it after returning to the White House, but in practice he extended and expanded tax breaks for businesses and wealthy Americans, depriving the federal budget of a significant share of revenue.
The result was predictable: according to the same CBO data, interest payments on the national debt in 2026 have for the first time consistently exceeded defense spending, $1.03 trillion versus $850 billion.
Fifteen cents of every federal dollar now goes not to the military, health care, or infrastructure, but to servicing past borrowing.
The Treasury borrows roughly $155 billion every month and pays approximately $24 billion in interest every week.
By 2036, according to CBO projections, net interest costs will double and exceed $2.1 trillion annually, while defense spending will rise only to about $1.1 trillion.
America Is Approaching a Record Set During World War II
The debt-to-GDP ratio looks no less alarming than the absolute figure of $40 trillion.
According to Congressional Budget Office estimates, federal debt held by private investors is already approaching 100 percent of annual U.S. GDP and could surpass by 2029 the historical record set at the end of World War II, when it stood at roughly 106 percent.
From there, the trajectory does not level off but continues upward: if current fiscal policy remains unchanged, the CBO projects that the ratio will keep rising throughout the following decade, without a single year of stabilization.
For comparison, as recently as 2021, the Treasury’s net interest costs amounted to roughly 1.5 percent of GDP. Today they are approaching 3.2 percent, making them one of the largest federal expenditures, behind only Medicare and Social Security.
The Debt Trap Has Already Snapped Shut
This mechanism is not a one-time shock but a process embedded in the very structure of American finance, one that year after year makes the federal budget increasingly dependent on the bond market.
Every tranche of old, cheap debt issued during the near-zero interest-rate era of the previous decade is being replaced at maturity by new debt carrying rates that are now two or three times higher.
Because refinancing is spread over many years, debt-servicing costs will rise automatically even in the absence of any new crisis, simply as old obligations mature. That is precisely why even moderate investor anxiety can become so expensive for Washington.
AI Has Unexpectedly Become a Competitor to the U.S. Treasury
The second force driving yields higher is not directly related to fiscal discipline, but it does help explain why the selloff has reached such proportions precisely now.
America is experiencing an artificial intelligence investment boom comparable in scale to the internet euphoria of the late 1990s, and that boom requires more money than even the richest corporations on the planet have readily available in cash.
The five largest technology companies, Alphabet, Amazon, Meta, Microsoft, and Oracle, issued $159 billion in bonds during the first half of 2026, 47 percent more than they issued during all of 2025.
Amazon alone borrowed about $57 billion, Alphabet roughly $52 billion, Meta issued $30 billion in debt, the largest corporate borrowing of its kind since 2023, and Oracle raised $18 billion.
By the end of July, the total amount raised by those five companies in equity and bond markets had approached $302 billion, while their combined capital expenditures on AI infrastructure in 2026 could, by various estimates, exceed $700 billion.
Morgan Stanley analysts estimate that total global debt associated with financing AI infrastructure could approach $570 billion for the year, excluding off-balance-sheet obligations tied to long-term data-center leases. According to Moody’s, such commitments among the same five companies have reached roughly $970 billion, nearly $700 billion of which has yet to be recorded as debt on their financial statements.
Amazon, Microsoft, and Google Are Pulling Money Away From Washington
The technology sector now accounts for 18 percent of all U.S. investment-grade corporate debt issuance, a record share for a single industry.
The problem is that bonds issued by Alphabet, Amazon, and Microsoft compete for the same buyers as U.S. Treasury securities.
Pension funds, insurance companies, and sovereign wealth funds have a finite pool of capital, and when Oracle or Meta offers a higher risk premium than Treasury securities, some of the money that previously flowed almost automatically into government debt is redirected toward corporations.
For Washington, that means having to raise the yields on its own securities to regain investors’ attention, which is exactly what happened in August.
Oracle appears particularly vulnerable in this environment. Barclays analysts have warned that the company could face a cash shortage as early as November 2026, while spreads on its debt backed by data-center contracts have widened noticeably in recent months, prompting some holders, including major institutional investors, to begin selling those securities on the secondary market.
The hidden risk in the entire structure is that the graphics processors being purchased with these hundreds of billions of borrowed dollars can become technologically obsolete within just a few years, while the bonds used to finance them mature in ten, twenty, and sometimes even forty years.
For now, this mismatch in time horizons is being masked by record technology-sector profits, but it could become sharply more dangerous at the first serious slowdown in demand for computing capacity.
Hormuz Has Added a Geopolitical Detonator to the Debt Problem
The third factor behind the selloff is not financial but military and political, and without it the picture remains incomplete.
On June 17 in Islamabad, the presidents of the United States and Iran signed a sixty-day memorandum of understanding intended to consolidate a ceasefire after more than three months of war.
The agreement provided for lifting the maritime blockade of the Strait of Hormuz, a $300 billion aid package for Iran, the removal of sanctions, and the unfreezing of Iranian assets in exchange for clearing mines from the strait and making concessions on the nuclear program.
The agreement began unraveling almost immediately. On June 27, Trump called Iranian strikes in the region a serious violation of the understandings. On July 7, he declared the ceasefire over, after which the U.S. military resumed its attacks.
Tehran responded by announcing the suspension of its own commitments.
The Agreement Has Expired, and the Market Is Once Again Pricing In a Major War
On August 17, the sixty-day memorandum expired without being extended.
Trump told reporters directly that Washington had no intention of seeking an extension and, at the same time, called the idea of declaring the Strait of Hormuz U.S. territory an excellent one, hardly the kind of language likely to encourage de-escalation.
Iran’s military command demanded the complete withdrawal of U.S. forces from the Persian Gulf and the Gulf of Oman, while one commander of the Islamic Revolutionary Guard Corps promised a reward of nearly $30,000 to anyone who killed or captured an American service member.
Jared Kushner is reportedly continuing behind-the-scenes contacts with the Iranian side, and Washington, if its public statements are to be believed, remains prepared to reach an agreement if its key conditions are met. Yet over the past two months, the two sides have failed to narrow their differences on the main disputed issues.
Roughly one-fifth of the world’s seaborne oil trade passes through the Strait of Hormuz every day, and any genuine escalation there is immediately reflected in the price of a barrel of oil, then in inflation expectations, and therefore in Treasury yields, which are highly sensitive to any indication that U.S. inflation is not returning to the Federal Reserve’s 2 percent target.
A New Fed Chair: The Market Is Beginning to Question the Central Bank’s Independence
A fourth element has now been added to this mixture, one that the market is still assessing with cautious distrust.
Jerome Powell’s four-year term as chairman of the Federal Reserve expired on May 15, 2026.
He was succeeded by Kevin Warsh, whose nomination was confirmed by the Senate after aggressive lobbying by Trump, who had spent years publicly criticizing Powell for what the president regarded as excessively slow interest-rate cuts.
Warsh is known as an advocate of faster monetary easing combined with an aggressive reduction of the Federal Reserve’s balance sheet, a position that can be interpreted very differently depending on one’s perspective.
For the White House, it is a promise of cheaper money. For the bond market, it is a potential signal that the independence of the central bank, traditionally one of the anchors of confidence in the dollar, is weakening at precisely the moment when fiscal discipline is already in question.
From Volcker to Warsh: What Took Decades to Build Can Be Lost Quickly
The contrast with earlier eras is revealing.
In the early 1980s, Federal Reserve Chairman Paul Volcker raised the key interest rate above 19 percent, deliberately triggering a recession in order to crush double-digit inflation, and he did so despite intense dissatisfaction from the White House.
It was precisely this willingness to act against the administration’s immediate political interests that established, for decades, the reputation of the U.S. central bank as an institution whose decisions could neither be bought nor engineered to produce a predetermined political outcome.
Warsh’s arrival against the backdrop of an open presidential campaign for lower rates is being interpreted by many investors as movement in the opposite direction. And unlike voters, the bond market passes judgment on institutional credibility every day, not at the ballot box but in basis points of yield.
The Criminal Investigation Into Powell Became Another Warning Sign
Another development deserves separate attention: in January 2026, a criminal investigation was opened into Powell himself, formally prompted by a sharp increase in the cost of renovating the Federal Reserve’s headquarters, from $1.9 billion in 2017 to $2.5 billion.
Critics of the administration viewed the investigation as a form of political pressure on the regulator ahead of the leadership transition.
Regardless of whether that interpretation is justified, investors did not overlook the fact that a criminal investigation into the sitting Federal Reserve chairman coincided with the arrival of a more accommodating successor. Historically, investors have been willing to pay a premium for confidence that the central bank is insulated from short-term political interests.
This Is Not Another Lehman: Why America Is Not Yet Standing on the Edge of the Abyss
Despite everything described above, leading economists broadly agree on one point: the United States is unlikely to face an acute debt crisis in the foreseeable future, and the difference between today and 2007–2008 is fundamental.
Back then, the problem lay at the very foundation of the financial pyramid. Banks issued enormous volumes of bad mortgages to borrowers who could not afford them, packaged those debts into derivatives carrying artificially inflated ratings, and sold them to investors around the world.
When the bubble burst, financial institutions in the United States and Europe began collapsing one after another, forcing governments to rescue the financial system at taxpayers’ expense.
Today, the Treasury’s competitors for investors’ money are not bankrupt households saddled with mortgages they could never afford in the first place, but Amazon, Alphabet, and Microsoft, companies with some of the highest credit ratings in the world and tens of billions of dollars in free cash flow.
Even if the artificial intelligence boom proves overvalued and some data centers turn out to represent excess capacity, these corporations have enough equity capital to absorb the losses without triggering the chain reaction of bankruptcies that paralyzed the financial system seventeen years ago.
There May Be No Default. But the Bill Will Still Have to Be Paid
There is a second argument, and it is far more fundamental.
Nobel Prize-winning economist Paul Krugman points out that countries that borrow in their own currency are technically incapable of defaulting in the classical sense because they can always print money to service their debt.
History, he argues, offers no example of a state that borrowed in its national currency and nevertheless failed to repay its creditors.
The price of that guarantee is not default but inflation: the depreciation of the dollar, the currency in which the debt is denominated, reduces its real burden on the federal budget while simultaneously eroding the purchasing power of every holder of dollar-denominated assets, from an American retiree to the Chinese central bank.
The Congressional Elections May Become the Last Political Brake
The market remains relatively calm in part because it is pricing in political constraints that could take effect regardless of what the White House wants.
The United States will hold midterm congressional elections in November 2026, and a significant number of analysts expect Republicans to lose control of at least one chamber.
Losing the majority would sharply restrict the administration’s ability to push through further tax cuts without resistance from Congress and could accelerate the very fiscal consolidation that Bessent began discussing publicly this week, promising to announce specific measures in the very near future.
Trump himself, under the constitutional two-term limit, will leave office in January 2029, and markets traditionally build into long-term interest rates the expectation that a change in administration may alter the fiscal trajectory.
The history of the past two decades, however, provides limited grounds for such optimism. Deficits under Democratic and Republican administrations have grown in broadly parallel fashion in recent years, differing more in rhetoric than in outcome.
Bessent Is Reassuring the Market. But the Market Has Heard This Many Times Before
Bessent publicly insists that the $40 trillion figure carries no magical significance in itself, that tariff revenues in 2026 will remain comparable to last year’s level, and that, in his assessment, the deficit has already peaked.
The problem is that Treasury secretaries offer similar assurances at almost every level of national debt. In that sense, Bessent’s current statements are not very different from what his predecessors said when the debt stood at $20 trillion or $30 trillion.
America Is Becoming More Expensive, and So Is Money for the Rest of the World
The yield on U.S. Treasury securities is not merely a number on a Bloomberg terminal. It is the foundation on which the cost of borrowing across the global economy is built, from mortgage rates in Europe to the price of corporate loans in emerging markets.
A rise in yields to nearly twenty-year highs automatically makes capital more expensive everywhere, increases pressure on the currencies of countries with heavy external debt, and forces central banks from Tokyo to Frankfurt to reassess their own policies with one eye on what the Federal Reserve is doing.
China, Japan, and Britain Are Gradually Pulling Back From U.S. Debt
At the same time, demand for U.S. debt from major traditional holders, including the United Kingdom, China, and Japan, has been weakening, with all three noticeably reducing their Treasury positions in recent weeks.
This is less an abandonment of the dollar itself than a cautious diversification in response to growing uncertainty over U.S. fiscal and monetary policy.
But the cumulative effect of such diversification, if it continues for months rather than weeks, could eventually reshape the very architecture of global reserves, in which the dollar and U.S. Treasury securities have for decades served as the default anchor for central banks around the world.
The Cost of the National Debt Is Showing Up Directly in Americans’ Mortgage Bills
Inside the United States, the effect of higher yields is not abstract. It appears in the actual monthly bills paid by ordinary households.
Thirty-year mortgage rates in the United States are traditionally linked to yields on long-term Treasury securities, with a premium of roughly one and a half to two percentage points. Every jump in government bond yields is therefore transmitted almost immediately into the cost of mortgages, auto loans, and business credit for midsize companies that have no access to the investment-grade bond market.
While the largest technology corporations can still borrow at rates that remain low by historical standards because of their exceptional credit ratings, a small construction company or a family buying its first home ends up paying a far higher price for the same rise in yields.
For them, the cost of servicing the national debt and Silicon Valley’s inflated capital spending is not an abstract macroeconomic concept but a very tangible increase in the monthly payment.
A Hegemon That Must Pay More and More to Finance Its Own Ambitions
This is where the real paradox of the moment becomes visible.
The United States is simultaneously projecting military and political assertiveness, threatening Iran, discussing the annexation of an international strait, and seeking to expand its technological dominance through the artificial intelligence race, while borrowing money to finance those ambitions at interest rates it has not paid in nearly twenty years.
A superpower that behaves as though it were an uncontested hegemon while financing that role on increasingly unfavorable terms is a structure whose resilience will be tested not by one dramatic crisis but by the accumulation of many smaller pressures, each of which appears manageable on its own.
Forty Trillion Dollars Is Only a Symptom. America Is Losing Not Money, but a Privilege
The United States is not facing default in the sense feared by Lehman Brothers investors in 2008. Its own currency and its ability to create money remain reliable insurance against formal insolvency.
That is precisely why the real danger lies not in the balance of payments but in confidence. The market is no longer willing to finance American ambitions at the old price and is demanding an increasingly large premium for a risk that was once treated as almost nonexistent.
Forty trillion dollars is not the diagnosis. It is the symptom.
The real diagnosis is different: a political system that extends tax breaks instead of cutting the deficit, appoints a loyal rather than independent Federal Reserve chair, and simultaneously threatens to annex an international strait is losing not its solvency but something less visible at first glance and far more valuable: the ability to borrow cheaply simply because the world spent decades treating it as virtually risk-free by default.
It is this privilege, not the abstract size of the debt, that Washington is now slowly squandering in the bond market, almost unnoticed by its own voters.