What is the role of Elon Musk and the Department of Government Efficiency in the Trump administration's recent firings?

According to White House Press Secretary Caroline Levitt, Elon Musk and the Department of Government Efficiency (referred to as 'Doge's efforts') are working with agency secretaries to eliminate waste, fraud, and abuse in the federal government. While the administration is seeking Supreme Court approval for additional firings, Levitt clarified that actual personnel decisions remain at the discretion of individual agency secretaries. The administration is defending these firings as part of President Trump's broader agenda to reduce inefficiencies in federal operations. Agency heads are cooperating with Musk's department to identify and eliminate wasteful practices across the government, aligning with the administration's efficiency goals.