The Treasury Secretary Is Fighting His Own Bond Market

On a single day last week, Treasury Secretary Scott Bessent promised two futures that cancel each other out.

It is going to work in Iran and we are going to collapse this regime. — Scott Bessent

The Iran conflict will end, interest rates and the spike in headline inflation will come down. — Scott Bessent

The first promise requires the blockade of Iran to keep running until the regime falls. The second requires the blockade to end. One official, one day, two outcomes that cannot share a calendar. The reason this matters is not rhetorical. Bessent runs both halves of the machine, and the two halves have begun to feed on each other. The sanctions push oil up. Iran's threat to close the Strait of Hormuz to shipping sent Brent crude to $97 a barrel this week ^[1]. That oil feeds the inflation that has now run above 2% for 65 straight months, in part because of "energy prices linked to the Iran war" ^[2]. And inflation is what is breaking the bond market. In August, even a benign inflation report could not hold bond prices up, because investors were pricing in the next oil shock; the 10-year yield closed at 4.682% anyway ^[3]. So the Treasury Secretary who runs the sanctions is also the Treasury Secretary watching his own borrowing costs climb. His answer is to buy bonds back. On September 3, after a sell-off that pushed the 30-year yield to 5% and the 10-year toward 4.8%, Bessent expanded the buyback program again ^[4]. Here the circle closes. The buybacks are no longer funded out of spare cash. The Treasury is now issuing new debt to pay for them, and it is issuing that debt at the very yields the buybacks are meant to bring down ^[5]. The tool that suppresses yields is being paid for with the yields it is trying to suppress. Over 28 months the program saved roughly $34 billion; the new borrowing may offset that saving ^[5]. Bessent's own calm makes the irony sharper. Asked about the sell-off, he said the market's month-to-month moves don't matter.

I don’t think we are in any kind of a dire situation. — Scott Bessent

The sanctions are not toothless. The IMF puts the damage to Iran's economy at $600 billion ^[6]. And the war is not the only thing driving inflation; the Fed counts AI spending and tariffs alongside it ^[7]. The problem is narrower: one official runs a campaign that raises yields and a program that lowers them, and the second is now financed by the first. The debt issued to suppress yields is the debt those yields create. The loop has closed.