Way easier than that. Treasury prints a trillion dollar coin.
Discussion
And pigs fly.
Is what they said about bitcoin ... at the start ...
Loose consensus and running code is much different thing than the will of a small cabal of politicos.
Common sense plays a role. The so-called National Debt (scam) is simply inter agency debt, that has yet to be netted. You can cancel it non-interest bearing coins without changing any laws.
* Rough