The Government Accountability Office has been filing versions of the same warning for nearly a decade. The March 2026 federal debt management report (GAO-26-107529) is the current iteration — technically new, analytically updated, politically unchanged in its consequence. The core finding is not about Treasury’s operational competence. That is documented and credited. The core finding is about structural trajectory: the federal government is on a fiscal path the GAO explicitly describes as unsustainable, and the mechanisms needed to alter that path require congressional action that has not come.