Extraordinary measures include drawing on a government employee and retiree Thrift Savings Fund (the G-fund). Treasury appears to spend down the voluntary savings of employees and retirees when debt is constrained by a debt limit…something I would argue is not in the interests of fund contributors…a violation of fiduciary responsibility. Once the debt limit is expanded the funds are returned. This is described here: https://missingmoney.solari.com/missing-money-update-thrift-savings-fund-treasury-account-026×61531/. I am working on additional research on topic…available soon.