The Washington Post reported Friday that the highest-ranking career official at Treasury is leaving the department after “a clash” with people working for Musk’s so-called Department of Government Efficiency (DOGE) over “access to sensitive payment systems,” citing three unnamed sources.

The DOGE officials have been asking for access to the system — which controls the flow of more than $6 trillion annually to programs like Social Security and Medicare — since after the election in November. The Trump administration has been looking for ways to stop the flow of federal money appropriated by Congress, including hastily ordering a confusing spending freeze, which experts say violates the Constitution.