While they will be paid once the shutdown ends, many say they will struggle to pay bills in the meantime.
Congressional Democrats are engaged in a more than three-week battle with Senate Republicans and the White House over funding for a wall along the southern border.
The U.S. government shutdown, which affected a quarter of federal agencies, stretched into the 22nd day on Saturday, eclipsing all the previous 20 such closures to become the longest in the country's modern history.
"See if he can do it by himself through the emergency powers".
Such a step would allow Mr Trump to bypass Congress and tap various pots of unspent federal money, including for military construction and disaster relief and from assets seized by law enforcement, to pay for the wall.More news: Former Leeds striker Phil Masinga has died aged 49
At a roundtable discussion about border security on Friday with state and local leaders, Mr Trump again demanded that Democrats approve funding for a wall or steel barrier. The president initially sounded as though such a move was imminent, but then pulled back.
A key question is how much more time is Trump willing to give lawmakers. Trump has hit a low point of 35% in CNN's polling two times - in December 2017 and February 2018 - and has been at 40% or above just nine times out of the 20 CNN has polled on it.
The speaker's office had no immediate comment. Many Republicans are wary, too. I think the legislative route is the best way to go. With the exception of certain local employees overseas, the rest are working without pay, like those tasked with supporting Pompeo's trip, which has thus far taken him to Jordan, Iraq, Egypt and Bahrain, with additional stops to come.
Nonetheless, Trump insisted he had the right to declare an emergency if he chose to, and continued to insist there was a crisis at the border.
United States President Donald Trump said he was holding off on declaring a state of emergency to end the partial USA government shutdown that dragged into a 23rd day yesterday, as he insisted on US$5.7 billion (S$7.7 billion) to build a Mexico border wall that congressional Democrats oppose. But last week, Trump shot down a deal floated by Senate Republicans that would have included those protections, and he has repeatedly said that he plans to wait until the Supreme Court rules on the matter before seeking to negotiate with Democrats on it. Pelosi also has shown no interest in accepting a wall - she has called it an "immorality" - in exchange for immigration fixes.More news: Four foreign tourists among seven dead in Cuban road accident
Jennifer Lawless, a politics professor at the University of Virginia, said she believed Mr Trump and Republicans would lose the game of chicken as furloughed workers, travellers, tourists and others "experience the consequences of political dysfunction firsthand".
The White House has been laying the groundwork for an emergency declaration, feared by members of both parties.
More Americans-54%-still say they oppose a border wall.
Instead, Johnson said, he wants to "keep pressure on Democrats to actually come to the negotiating table in good faith and fund what they've supported in the past".
Airport spokesman Greg Chin said the decision to close some parts was a "precautionary measure to optimise staffing" during peak times, when large numbers of cruise-line passengers leave the city. A person familiar with White House thinking said that in meetings this past week, the message was that the administration is in no rush and wants to consider various options.More news: L.A. Coliseum could potentially host AFC/NFC conference championship games