And with the post-holiday credit card bills beginning to come due next month just as paychecks could be drying up, typical holiday season stress could be exacerbated by extreme financial uncertainty. Transportation Security Administration officers continued to staff airport checkpoints and air traffic controllers were on the job. TSA employees, Correctional officers, Federal Bureau of Investigation agents, U.S. Marshals, Border Patrol officers, Coast Guard employees, Forest Service firefighters and Weather Service forecasters are all expected to continue working without pay. They will eventually get paid for the days they worked during the shutdown, but they won't be paid until after it ends.
About three-quarters of federal government programs are funded through to Sept 30 next year, but the financing for all others - including the departments of Homeland Security, Justice and Agriculture - expired at midnight.
The Senate has adjourned without a deal on spending, an hour after the House ended its session, guaranteeing a partial government shutdown will begin at midnight Friday. Democrats will take control of the House January 3, and they oppose major funding for wall construction.
The shutdown "could be devastating for the men and women who keep our federal buildings safe and clean", said 32BJ Service Employees International Union (SEIU) Vice President Jaime Contreras. But when he convened a lunch at the White House, he invited only Republican lawmakers and officials. Chuck Schumer of NY, said in a statement that Trump "threw a temper tantrum and convinced House Republicans to push our nation into a destructive Trump Shutdown in the middle of the holiday season".
Trump called GOP senators to the White House Friday morning, but Republicans said afterward that the session did not produce a strategy.
The government is officially partially shut down. The Mexican Government has said it would not fund the wall.
Now, that gridlock is affecting large parts of the federal government.
Mulvaney sent agency heads a memorandum telling them to "execute plans for an orderly shutdown".
Essential employeers will continue to work during the closure.
Despite the House of Representatives passing a bill on Thursday, which included this demand, it was clear on Friday that there was not enough support in the Senate for the bill, including the $5 billion for the wall, to clear.
CBS News' Ed O'Keefe reports that Washington is poised to endure a longer-than-comfortable stalemate - not resolving until later next week at the earliest.
First lady Melania Trump and 12-year-old Barron arrived at Mar-a-Lago, Florida.
The longest shutdown, lasting 21 full days, occurred in December 1995 and January 1996, triggered by conflicts between Democratic President Bill Clinton and congressional Republicans over Medicare funding and government spending. About 16,000 National Park Service employees - 80 percent of the agency's workforce - will be furloughed.
But that doesn't they will be fully accessible.
"This is our only chance that we'll ever have, in our opinion, because of the world and the way it breaks out, to get great border security", Trump said Friday.
Unfortunately, given the manner in which the process has played out, and the fact that the president seems to be without any prospect of a successful end game, the likely effect of a short shutdown, at least in the near term, will be to add to the growing impression of chaos in the executive branch.
"But White House press secretary Sarah Sanders offered no details Friday morning as to how long a "very long time" could be".