Persistent large federal deficits, projected by the CBO at around $1.9–2.1 trillion for fiscal year 2026, continue to drive growth in debt held by the public, which stood near 100 percent of GDP and crossed $40 trillion in total gross debt by August 2026. Mandatory spending on Social Security, Medicare, and rising net interest costs—now exceeding defense outlays—outpace revenues, while the 2025 reconciliation legislation added trillions to projected deficits over the decade. Tariff adjustments and supplemental defense needs tied to international developments have also influenced recent borrowing. Official baselines from CBO and GAO show debt-to-GDP rising steadily through 2036 under current policies, with the next statutory debt limit deadline expected in 2027 and no enacted measures yet positioned to produce a near-term peak. FY2027 appropriations and any policy shifts could affect the trajectory within the resolution window.