A lawsuit filed Monday seeks to halt the ‘unlawful disclosure of information,’ including Treasury data on Americans’ taxes and Social Security, to DOGE staff. This week, President Trump adviser Elon Musk’s newly formed Department of Government Efficiency (DOGE) seems to have gained full access to the Department of Treasury’s payments systems responsible for processing trillions of dollars of spending,

Democratic lawmakers have expressed concern that access to the system could allow DOGE, which disburses nearly 90% of all federal payments, to restrict disbursement of federal funds.

Two senior agency veterans focused on policy and operations are working with DOGE to review the agency overseeing Medicare and Medicaid, which provide health insurance for about 1 in 4 Americans, according to a U.S. Department of Health and Human Services spokesman.