The suit was the latest effort by unions representing federal workers to push back against Trump administration directives aimed at undermining the federal bureaucracy.

Three employee unions that represent federal workers are suing to stop Elon Musk and his collection of non-government aides from accessing the personal information in the Treasury Department payment systems.

Three U.S. government employee unions filed a lawsuit Monday against the Treasury, alleging that its sharing of confidential information with the Elon Musk-run Department of Government Efficiency violated the law.

The federal lawsuit argues that Musk's DOGE team is using the system in violation of multiple privacy laws and other regulations

Musk’s team at the Department of Government Efficiency was given access to the Treasury Department’s payment system over the weekend.

The lawsuit comes after the Trump administration pushed out a top Treasury Department official who refused to grant Musk and individuals from the non-governmental Department of Government Efficiency access to the systems.