US Debt Interest Burden Threatens Social Programs, Finance Expert Warns

The United States has crossed a troubling fiscal milestone: total public debt has topped $40 trillion, according to the Treasury Department. This means the federal government now spends over $1.2 trillion annually just on interest — roughly one-fifth of its entire budget, making debt service the second-largest expense after Social Security.

Phillip Braun, a clinical professor of finance at Northwestern University's Kellogg School of Management, says the debt has moved beyond an abstract concern into a concrete economic problem. He points to recent turbulence in the bond market as evidence that investors are growing wary of US government paper.

"The government is having a harder and harder time being able to sell this debt," Braun said. "People view it as becoming more risky across time, and so they demand higher yields on the bonds that the US government issues." That dynamic pushes up long-term interest rates on 10-, 20-, and 30-year Treasury bonds.

Higher yields on government debt ripple through the economy, raising borrowing costs for mortgages, auto loans, and corporate debt — costs that ultimately reach households. But the most direct consequence, Braun warns, is on federal spending priorities.

"The interest payments are going to crowd out other government expenditures," he said. "With the Republicans in office, it's going to crowd out the social programs and things like that. It's not a good situation."

Projections suggest the national debt could nearly double within the next decade, compounding the problem. As interest obligations grow, the room for discretionary spending — including social safety nets — shrinks further, leaving policymakers with increasingly difficult choices.