"In the building behind me, Elon Musk is seizing power away from the American people," Warren told hundreds gathered outside the Treasury. The show of protest came as Democrats in Congress are struggling,

In a letter to the Treasury secretary, the Democratic senator warned against meddling with a system that processes trillions of dollars of transactions.

Days after his swearing-in, Treasury Secretary Scott Bessent gave Elon Musk and his team at the so-called Department of Government Efficiency access to the agency’s federal payments system, which essentially operates as the country’s central bank account.