#USNationalDebt The US National Debt is the total amount of money that the federal government borrows to cover budget deficits. As of 2025, this debt has exceeded 34 trillion USD, primarily from the issuance of government bonds. The main causes include large expenditures on defense, social security, healthcare, and economic stimulus packages. The rising debt raises concerns about long-term solvency, increasing interest rates, and impacts on economic growth. Controlling debt is a significant challenge for US policymakers.