Treasury yields hit 4.44%, raising Trump’s debt costs by $100B annually
U.S. borrowing costs are spiking—10-year Treasury yields hit **4.44%** (up from 3.95% pre-Iran war)—as investors demand higher returns amid **$1T annual debt costs**, Trump’s tariffs, and stubborn inflation, threatening Republican midterm prospects. Economists warn his unproven deficit fixes (like Vance’s "fraud task force") ignore **$4T annual deficits looming** by 2034, with tax cuts and trade wars worsening the crisis.
The bond market is flashing a fresh warning about inflation and debt under Donald Trump, driving up borrowing costs just as Republicans brace for a tough midterm election fight. Interest rates on the benchmark 10-year U.S. Treasury note have surged to 4.44%—up from 3.95% before the Iran war began in late February—pushing mortgage rates to nine-month highs and cooling auto sales. The spike reflects growing unease among global investors, who are demanding higher returns to lend to a U.S. government drowning in debt and facing stubborn inflation pressures from Trump’s tariffs and the fallout of the Iran conflict.
Trump has repeatedly promised to tame the $1.8 trillion annual deficit, pointing to tariff revenues, crackdowns on visa fraud, and vague claims about economic growth solving the problem. Last week, he bet big on Vice President JD Vance’s new “fraud task force,” suggesting it could magically balance the budget “without having to do anything.” But economists dismiss these ideas as unrealistic. The cost of servicing the national debt has already tripled since 2021 to over $1 trillion a year, and Trump’s 2017 tax cuts—which added an estimated $5 trillion to deficits over a decade—are a major driver. Even his tariffs, which he frequently touts, cover only a tiny fraction of the shortfall. With Social Security and Medicare costs set to outpace tax revenues, deficits could balloon past $4 trillion annually within 10 years.
The bond market’s reaction isn’t just about U.S. policy—it’s a global shift. Investors worldwide are recalibrating for higher inflation, ballooning government debt, and a massive surge in AI investment that’s redirecting capital. About 60% of the recent rise in long-term Treasury yields stems from fears of unchecked U.S. borrowing, according to the Penn Wharton Budget Model, while the rest ties to inflation fueled by Trump’s trade wars and the Iran crisis. Rates did dip slightly in May as ceasefire talks progressed, mirroring a pattern from 2025 when markets relaxed only after Trump rolled back his most aggressive tariff threats. But the underlying problem remains: the U.S. may no longer enjoy the same limitless borrowing power it once did.
For Republicans, the timing couldn’t be worse. Rising interest rates make everything from homes to cars more expensive, squeezing household budgets just as voters head to the polls. If borrowing costs stay elevated, economic growth could slow further—handing Democrats a ready-made attack line on GOP fiscal mismanagement. Trump’s gambit that growth or gimmicks will fix the deficit is running into reality: the bond market, unlike his rally crowds, doesn’t buy easy answers. And with debt payments now consuming a larger chunk of the budget than defense spending, the next president may inherit a crisis that tariffs and task forces can’t wish away.
