"Most of the [indicators] of measuring success are now classified, or we don't collect it," the special inspector general for the Afghanistan reconstruction told a Senate committee.
Despite the failure, Pentagon officials are spinning the audit as a step in the right direction.
A new audit reveals how poor oversight and structural problems allowed one Oakland cop to earn $2.5 million in overtime pay in five years.
Meanwhile, Trump and congressional Republicans want to remove spending caps for the Defense Department.
And another $840,000 subsidizing parking spaces, despite federal rules meant to limit commuting by car as a way to protect the environment.
Head of Arizona's Cosmetology Board Used Public Funds for Food, Holiday Decorations, Gifts, and More
The same board investigated a student for giving free haircuts and a cancer survivor for giving beauty treatments to the terminally ill.
Taxpayers paid for "excessive and inappropriate" lodging and travel costs, including for one employee who managed to travel 381 days of the year.