Investigative / Finance & Policy
The Buyback Loop
How U.S. Debt, Tether's Billions, and the Cabinet Secretary Who Connects Them Became the Same Bet
By Thomas A. Lamb · April 23, 2026 · 10 min read
The Setup
China is selling U.S. Treasuries. Not slowly. Not quietly. Nearly 50% gone since 2014. Japan is watching. Foreign demand for American debt is retreating at exactly the moment the U.S. needs it most — with $36 trillion in debt and over $1 trillion a year just in interest payments.
So who's buying?
Increasingly, the answer is two entities: the U.S. Treasury itself, and a private company registered in the British Virgin Islands with 100 employees and no banking license.
One is the United States government.
The other is Tether.
The Mechanics
When the Treasury does a buyback it isn't reducing debt. It's buying its own old bonds off the market and replacing them with new ones. The goal is to keep bond prices stable, yields from spiking, and the market functioning smoothly.
Without it:
| Bond prices fall |
| Yields rise |
| Borrowing costs explode |
| The debt spiral accelerates |
At $49 billion this month alone — record territory — the Treasury is no longer doing routine debt management. It's plugging a hole that foreign governments used to fill.
The Other Buyer
Tether issues USDT — a digital dollar used by hundreds of millions of people worldwide who want dollar stability without access to the U.S. banking system.
Every USDT issued represents a dollar Tether receives and invests — almost entirely in U.S. Treasuries. At $145 billion in holdings, Tether now ranks among the top 20 sovereign holders of U.S. debt globally. Ahead of Germany. Ahead of South Korea.
The business model is elegant and ruthless:
| Hold your dollars |
| Buy Treasuries with them |
| Keep all the interest |
| Return exactly $1 when asked |
Tether made $13 billion in profit in 2024. With 100 employees. That's $130 million per employee — more per person than any company on earth.
They earn it on money that isn't theirs.
The Custodian
Who holds Tether's $145 billion in Treasuries?
Cantor Fitzgerald. One of only 25 primary dealers authorized to trade directly with the Federal Reserve and U.S. Treasury. The firm that sits at the center of every major government bond transaction in America.
Cantor doesn't just hold Tether's reserves. It owns a 5% equity stake in Tether. It profits when Tether grows. It executes the Treasury buybacks that protect Tether's reserve value. It earns fees on both sides of the same trade.
The Man
Howard Lutnick ran Cantor Fitzgerald for 30 years. He is now the United States Secretary of Commerce.
Upon taking office he was required to divest from Cantor. His family trust purchased his ownership stake. To finance that purchase — the trust borrowed from Tether. Public UCC filings confirm Tether as the collateral agent for all assets in that trust, including a convertible bond giving Cantor the right to acquire a 5% equity stake in Tether.
The divestiture designed to eliminate the conflict was financed by the conflict.
Lutnick also sits on Trump's Working Group on Digital Asset Markets — the body writing America's first regulatory framework for stablecoins.
When asked at his confirmation hearing whether he would recuse himself from stablecoin policy, he declined to commit.
A Treasury Department investigation into Tether for allegedly facilitating illicit financial activities — months in the making — was quietly shelved after Lutnick's confirmation.
The Loop
This is the architecture:
| China sells Treasuries → yields threaten to spike |
| Treasury does record buybacks → Cantor executes them, earns fees |
| Buybacks stabilize bond prices → Tether's reserves hold their value |
| Tether stays solvent → continues buying Treasuries |
| GENIUS Act passes → stablecoins must hold Treasury reserves → more USDT adoption |
| More Treasury buying → supports U.S. debt |
| Lutnick writes the regulations → that govern the company → that finances his trust → that his former firm custodies → that executes the buybacks → that protect the reserves → that back the stablecoin → that buys the debt |
Round and round.
The Risk
Every loop has a breaking point.
If Tether faced a crisis — a mass redemption event, a regulatory shock, a crypto market collapse — $145 billion in Treasuries would hit the market simultaneously. Yields would spike violently. The buyback program would be overwhelmed. The debt spiral the buybacks are designed to prevent would accelerate.
The system protecting U.S. debt stability now depends on the stability of a private, largely unaudited company in the British Virgin Islands. That's not a feature. That's the exposure.
The Enforcement Void
Every conflict described here has been raised — by journalists, ethics watchdogs, members of Congress.
None has resulted in formal accountability.
The DOJ probe was shelved. The STOCK Act fine is $200. Congressional investigators lack subpoena power. The regulatory framework being written benefits the company financing the regulator's trust.
"You have a situation where the inspector general's office is not willing or able to act, the DOJ is not willing or able to act, Congress is not willing or able to act — then you're left with an enforcement void."
The Bottom Line
The U.S. Treasury is buying its own debt at historic rates because foreign buyers are leaving.
A private crypto company with 100 employees is filling the gap — and making $13 billion a year doing it.
The man who built that company's infrastructure now runs the government office writing its rules, executing its transactions, and shaping the trade policy that determines global dollar demand.
The corruption hasn't captured the system.
The corruption is the system.
And it has made itself too dangerous to dismantle.
Sources: Wall Street Journal, Bloomberg, Wired, BBC News, New York Times, Washington Post, Semafor, Atlantic Council, U.S. Treasury Bureau of the Fiscal Service, public UCC filings, Senate confirmation hearing transcript (January 29, 2025), Rep. Raskin's February 2026 letter to Cantor Fitzgerald.
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