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.

Ahead of a planned Department of Labor visit today by Elon Musk’s government-slashing group, unions launched protests and a lawsuit.

A coalition of unions and a worker advocacy organization are suing to block the Department of Government Efficiency from gaining entry to the US Labor Department’s computer systems.

Musk's rapid takeover of US government agencies has enabled the businessman to exert unprecedented control over America's federal workforce.

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,