The move by DOGE, a Trump administration task force assigned to find ways to fire federal workers, cut programs and slash federal regulations, means it could have wide leeway to access important taxpayer data,

Treasury Secretary Scott Bessent gave Mr. Musk’s representatives at the so-called Department of Government Efficiency a powerful tool to monitor and potentially limit government spending.

The access, granted by Scott Bessent, Trump’s newly confirmed treasury secretary, comes after the ousting of the agency’s top career official.