Persistent federal budget deficits, projected by the Congressional Budget Office at $1.9 trillion for fiscal year 2026 and rising thereafter, continue to drive U.S. national debt higher amid elevated spending on defense, entitlements, and net interest costs nearing $1 trillion annually. The 2025 reconciliation legislation added trillions to long-term obligations through tax measures and appropriations, while a Supreme Court ruling limiting tariff authorities is expected to widen cumulative deficits by roughly $2 trillion through 2036. Debt held by the public has already surpassed 100 percent of GDP, with total gross debt exceeding $38.9 trillion as of mid-May 2026 and a statutory ceiling of $41.1 trillion providing borrowing room into 2027. Absent major fiscal reforms or sustained revenue surges from growth, projections show debt-to-GDP climbing steadily toward 120 percent by 2036, with no near-term peak anticipated before the resolution window.