You could fire every single federal bureaucrat and you would save $300 billion - 5 percent of the budget and 15 percent of the deficit. If you don't touch Military, Medicare/Medicaid, and Social Security spending you're not serious about our nations fiscal solvency.
"the government today runs a deficit close to $2 trillion a year. To fund this deficit, it borrows roughly $10 billion each and every day. It’s important to realise here that while most countries do have some kind of national debt, the size and trajectory of America’s deficit is different. In 2000, the national debt was some $5.7 trillion dollars. In 2017, when Trump first took office, it was $20 trillion. Now, it’s over $36 trillion, putting unsustainable pressure on defence and social welfare costs. Even the most generous accounting of what Musk and Trump have achieved so far boils down to a few hours of US debt. And that’s if they can defend it all in court, and make it stick — and there’s no guarantee of that."