CBO Director Warns Debt Will Surpass WWII Levels, Interest Rates To Spike | Phillip Swagel

Summary

• The CBO's February 2026 outlook projects an unsustainable fiscal trajectory, with public debt hitting 120% of GDP by 2030, surpassing post-WWII records.
• The deficit is projected to rise from $1.9 trillion in FY2026 to $3.1 trillion by 2036, with net interest payments doubling from $1 trillion to $2.1 trillion over the same period.
• The Supreme Court striking down the AIPA tariffs could add ~$2 trillion to deficits over a decade, partially offsetting earlier tariff revenue gains that had reduced deficits by $3 trillion.
• The ongoing Iran war creates significant uncertainty; supplemental funding requests (~$200bn) are not yet in the baseline, and the duration/scope will determine its ultimate economic and budgetary impact.
• Higher, persistent energy price shocks from the conflict could transmit into broader inflation, influencing Federal Reserve policy, but the impact remains uncertain.
• Rising interest payments as a share of GDP (3.3% to 4.6%) will increasingly crowd out other government spending priorities, creating a policy challenge requiring tax/revenue increases or spending cuts.
• The CBO's economic projections incorporate a modest 10 basis point annual productivity boost from Generative AI but do not yet factor in potential labor market disruptions or new job creation from AI.
• Director Swagel clarifies "unsustainable" does not mean an imminent debt default or crisis, but a slow undermining of prosperity via potentially higher rates, inflation, or a weaker dollar if no policy action is taken.
• The primary market implication is investor confidence; current market pricing suggests belief that the U.S. will eventually take policy action to address the fiscal challenge.
• Key uncertainties for future projections include the final tariff policy landscape, potential supplemental war funding, and the economic effects of the 2025 Reconciliation Act's tax provisions.