The government partially shut down at midnight after the House and Senate failed to pass a spending bill. President Trump had insisted he would not sign any spending bill that did not include $5 billion for the border wall.
The partial shutdown won't have much effect on your holiday plans. The post office will stay open, so gift and holiday card stragglers can still put them in the mail. The Transportation Security Administration (TSA) agents would still work, and air travel would continue virtually unaffected.
Government employees who are considered "essential," such as Secret Service agents, Customs and Border Patrol agents and U.S. troops deployed at the border, will still be working. But a shutdown creates a risk for hundreds of thousands of federal workers: More than 420,000 federal employees would have to go to work without pay. More than 380,000 will be furloughed. Those who work will get paid eventually - and those furloughed likely will - but depending how long the shutdown lasts, they could miss a paycheck.
Funding that expired at midnight Saturday covers the Department of Homeland Security, the Justice Department, the State Department, the Interior Department, the Departure of Agriculture and the Department of Housing and Urban Development, among some other federal entities.
The Office of Management and Budget -- still run by incoming acting White House chief of staff Mick Mulvaney -- has issued guidance to each agency, and each agency would develop its own shutdown plan. Federal agencies must halt all "non-essential" discretionary work and so-called non-essential employees must stay home until new funding legislation is signed into law.