WASHINGTON — The White House budget office said Friday that mass firings of federal workers started, an attempt by President Donald Trump's administration to exert more pressure on Democratic lawmakers as the government shutdown dragged into a 10th day.
Russ Vought, the director of the Office of Management and Budget, said on social media that the "RIFs have begun," referring to reduction-in-force plans aimed at reducing the size of the federal government.
In a court filing, the budget office said more than 4,000 employees would be fired, though it noted that the funding situation was "fluid and rapidly evolving."
The firings would hit the hardest at the departments of the Treasury, which would lose over 1,400 employees; Health and Human Services, with a loss of over 1,100; and Housing and Urban Development, set to lose over 400.
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The departments of Commerce, Education, Energy, and Homeland Security and the Environmental Protection Agency were all set to fire hundreds of more employees. It was not clear which particular programs would be affected.

Russell Vought, Office of Management and Budget director, listens Sept. 29Â as he addresses members of the media outside the West Wing at the White House in Washington.Â
The aggressive move by Trump's budget office goes far beyond what usually happens in a government shutdown and escalates an already politically toxic dynamic between the White House and Congress. Talks to end the shutdown are almost nonexistent.
Typically, federal workers are furloughed but restored to their jobs once the shutdown ends, traditionally with back pay. Some 750,000 employees are expected to be furloughed during the shutdown, officials have said.

The U.S. Capitol is silhouetted by the morning sun Friday as a government shutdown begins its tenth day in Washington.Â
Some criticize administration
In comments to reporters in the Oval Office on Friday night, Trump said many people would lose their jobs, and that the firings would be focused on Democrat-oriented areas, though he didn't explain what that meant.
"It'll be a lot, and we'll announce the numbers over the next couple of days," he said. "But it'll be a lot of people."
Trump said that, going forward, "We're going to make a determination, do we want a lot? And I must tell you, a lot of them happen to be Democrat oriented."
"These are people that the Democrats wanted, that, in many cases, were not appropriate," he said of federal employees, eventually adding, "Many of them will be fired."

Senate Appropriations Committee Chairwoman Susan Collins, R-Maine, center, is seen Tuesday at the Capitol in Washington.Â
Still, some leading Republicans were critical of the administration's actions.
"I strongly oppose OMB Director Russ Vought's attempt to permanently lay off federal workers who have been furloughed due to a completely unnecessary government shutdown," said Maine Sen. Susan Collins, the chair of the powerful Senate Appropriations Committee, who blamed the federal closure on Senate Minority Leader Chuck Schumer, D-N.Y.
Alaska Sen. Lisa Murkowski called the announcement "poorly timed" and "yet another example of this administration's punitive actions toward the federal workforce."
For his part, Schumer said the blame for the layoffs rested with Trump.
"Let's be blunt: nobody's forcing Trump and Vought to do this," Schumer said. "They don't have to do it; they want to. They're callously choosing to hurt people — the workers who protect our country, inspect our food, respond when disasters strike. This is deliberate chaos."

Senate Majority Leader John Thune, R-S.D., left, and Speaker of the House Mike Johnson, R-La., speak at a news conference Friday as the government shutdown begins its tenth day in Washington.Â
Notices sent
The White House had previewed its tactics shortly before the government shutdown began on Oct. 1, telling all federal agencies to submit their reduction-in-force plans to the budget office for its review.
It said reduction-in-force plans could apply to federal programs whose funding would lapse in a government shutdown, are otherwise not funded and are "not consistent with the President's priorities."
On Friday, the Education Department was among the agencies hit by new layoffs, a department spokesperson said. A labor union for the agency's workers said the administration is laying off almost all employees below the director level at the Office of Elementary and Secondary Education, while fewer than 10 employees were being terminated at the agency's Office of Communications and Outreach.
Notices of firings also took place at the Cybersecurity and Infrastructure Security Agency, which leads federal efforts to reduce risk to the nation's cyber and physical infrastructure, according to DHS, where CISA is housed.
The agency has been a frequent Trump target over its work to counter misinformation about the 2020 presidential election and the COVID-19 pandemic. DHS said the layoffs were "part of getting CISA back on mission."
Federal health workers were also being fired, though an HHS spokesman did not say how many or which agencies were being hit hardest. A spokesperson for the EPA, which also has an unspecified number of layoffs, blamed the Democrats for the firings and said they can vote to reopen the government anytime.
Threats of more cuts
An official for the American Federation of Government Employees, which represents federal workers and sued the Trump administration over the firings, said in a legal filing Friday that the Treasury Department is set to issue layoff notices to 1,300 employees.
The AFGE asked a federal judge to halt the firings, calling the action an abuse of power designed to punish workers and pressure Congress.
"It is disgraceful that the Trump administration has used the government shutdown as an excuse to illegally fire thousands of workers who provide critical services to communities across the country," AFGE President Everett Kelley said in a statement.
Democrats tried to call the administration's bluff, arguing the firings could be illegal, and had seemed bolstered by the fact that the White House had not immediately pursued the layoffs once the shutdown began.

Sen. Patty Murray, D-Wash., asks a question during a June 18Â hearing on Capitol Hill in Washington.Â
The top Democrat on the Senate Appropriations Committee, Sen. Patty Murray of Washington, said in a statement the "shutdown does not give Trump or Vought new, special powers" to lay off workers.
"This is nothing new, and no one should be intimidated by these crooks," she added.
Still, there was no sign that the top Democratic and Republican Senate leaders were even talking about a way to solve the impasse. Instead, Senate Majority Leader John Thune continued to try to peel away centrist Democrats who may be willing to cross party lines.