A federal judge in New York early Saturday temporarily restricted the ability of Elon Musk’s Department of Government Efficiency to access the Treasury Department payment system, saying that doing so was necessary to prevent the potential disclosure of sensitive and confidential information.

A federal judge on Friday declined to block Elon Musk's government cost-cutting department from accessing the U.S. Department of Labor's systems, an initial setback for the government employee unions resisting his efforts to shrink the federal bureaucracy.