One of the largest U.S. labor unions asked a federal judge on Wednesday to block Elon Musk's government cost-cutting effort from accessing the Department of Labor's systems, which the union warned could give the billionaire sensitive information about investigations into his companies.

In a parallel lawsuit over DOGE agents gaining access to sensitive Treasury Department information, a Justice Department attorney said that the only agents with access were Tom Krause and Marko Elez,

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