Trader consensus against a U.S. default by 2027 rests on Congress’s established practice of resolving debt ceiling impasses through last-minute bipartisan agreements or short-term suspensions. Treasury officials routinely deploy extraordinary measures to extend borrowing capacity during negotiations, while both parties face strong incentives to avoid the economic fallout of missed payments, including higher borrowing costs and market volatility. Historical patterns show repeated increases in the statutory limit across divided and unified governments, with procedural tools like continuing resolutions providing additional flexibility. Even with fiscal pressures from appropriations and entitlement spending, the 97% implied probability reflects traders’ assessment that institutional guardrails will prevail. Credible alternative scenarios remain limited to prolonged post-election gridlock or an unprecedented breakdown in debt-limit talks, though such outcomes have not materialized in prior cycles.