Short version: a formal default is nearly impossible without Congress, so the realistic paths are soft defaults — renegotiating terms under coercion, or inflating the debt away. Ranked from most to least plausible:
1. Financial repression via the Fed (most likely, already underway)
Push the Fed to cut rates and eventually cap long yields below inflation. Bondholders get paid in full nominally but lose in real terms. Miran, author of the restructuring playbook, is now a voting Fed governor, and Treasury has said it will lean toward short-term maturities through late 2026, which makes debt service hypersensitive to Fed rate decisions. The Fed did explicit yield control in 1942 and 1951 to fund war debt. That’s the template. No default, no Congress, just negative real rates for a decade.
2. Coerced swap into century bonds (the “Mar-a-Lago Accord”)
Foreign central banks swap their T-bills for 100-year zero- or low-coupon bonds, under threat of tariffs or loss of the security umbrella. Analysts across the spectrum describe this as a restructuring that is essentially a default. The excuse: “you’ve free-ridden on US defense and dollar liquidity; this is your fair share.” Problems: tariff threats have lost credibility through overuse, and pushing too hard drives holders out of dollars entirely. The April 2025 Treasury sell-off after Liberation Day was the market’s preview.
3. Selective repudiation of adversary-held debt
Declare China’s roughly $700B in Treasuries frozen or subject to “user fees” as retaliation for trade practices, IP theft, or Taiwan. Miran’s paper floats user fees on foreign central bank holdings. Legally shaky, but Russia’s reserves got frozen in 2022, so the precedent exists. This is the one where a geopolitical crisis supplies the excuse.
4. Debt-ceiling brinkmanship as leverage
Let a payment date slip, call it “prioritization,” then use the chaos to force Congress or holders into accepting new terms. 2011 and 2023 showed how close this gets. The 14th Amendment says the debt “shall not be questioned,” which is why administrations always blink. Low odds unless Trump wants the crisis.
5. Gold revaluation and the sovereign wealth fund
Mark gold from $42/oz to market, book roughly $900B in “profit,” and use it to retire or offset debt. Not a default; an accounting trick. Also the sovereign wealth fund is meant to play into this but nobody’s explained how.
Binding constraints
- Congress controls the purse; Treasury can’t unilaterally alter bond terms.
- Roughly 70% of Treasuries are held domestically — banks, pensions, money markets, the Fed. Any “renegotiation” hits Americans first.
- The whole system runs on Treasuries as the risk-free collateral. Impair that and repo, bank balance sheets, and money funds seize up faster than any foreign holder can be coerced.
So the path with the least friction is #1, and it doesn’t need an excuse. It’s happening under the label “rate cuts.”
Not financial or legal advice.