Persistent large federal deficits, projected by the Congressional Budget Office at $1.9 trillion for fiscal year 2026 and rising thereafter, continue to drive gross national debt above $40 trillion as of September 2026. Mandatory spending on Social Security and Medicare, combined with elevated net interest costs exceeding $1 trillion annually, outpaces revenue growth even under steady economic conditions. Recent passage of a continuing resolution funding the government through December 2026 has deferred immediate fiscal pressure, while the debt limit established in prior legislation faces potential testing in 2027. Midterm elections in November 2026 and any subsequent appropriations or policy shifts represent the primary near-term variables that could influence borrowing trajectories before year-end 2026. All major forecasts indicate ongoing accumulation through at least 2027 absent major legislative changes.