The US government shutdown has now entered its 38th day, making it the longest shutdown in American history.
This means that over 1 million federal workers have not received a paycheck even though as many as 737,000 have continued to work, CNN and NBC reported.
Some 750,000 federal workers have been on furlough.
The bipartisan policy center estimated that if the shutdown continues into December, the US government will miss payments on $21 billion in federal paychecks.
Over 434 staffing problems were reported by the FAA, CNN reported Thursday.
US Shutdown causes 4% slowdown on flights
FAA Administrator Bryan Bedford told Fox Business on Tuesday that at the agency's largest 30 airports, "anywhere from 20 to 40% of our controllers aren't coming to work."
Subsequently, the US federal government announced that it would reduce flights by 4% on Friday. The Trump administration stated that it would further reduce flights by up to 10% next week if the shutdown drags on. For example, 13,000 air traffic controllers and 50,000 Transportation Security Administration agents have worked without pay for over a month.
Additionally, one in eight Americans, roughly 42 million people, have not received SNAP benefits needed to feed their households.
Even if the shutdown were to end in a week, the Congressional Budget Office estimates that the GDP would slow up to 2%.
The CBO estimates that $7 billion has already been permanently lost during the four weeks of shutdown, but as much as $14 billion could be lost if the shutdown reaches eight weeks.
“The current shutdown looks likely to have the greatest economic impact of any shutdown on record,” chief political economist at Goldman Sachs, Alec Phillips, said, as quoted by CNN.
This comes as US President Donald Trump pressured Republican senators to end the Senate filibuster during a Tuesday meeting at the White House.
"We have to get the country open. And the way we're going to do it this afternoon is to terminate the filibuster," Trump said.
Earlier this week, Trump called on Congress to end the shutdown immediately.
“The Democrats are far more likely to win the Midterms, and the next Presidential Election, if we don’t do the Termination of the Filibuster (The Nuclear Option!), because it will be impossible for Republicans to get Common Sense Policies done with these Crazed Democrat Lunatics being able to block everything by withholding their votes,” he wrote on Truth Social.
“FOR THREE YEARS, NOTHING WILL BE PASSED, AND REPUBLICANS WILL BE BLAMED. Elections, including the Midterms, will be rightfully brutal,” he continued. “If we do terminate the Filibuster, we will get EVERYTHING approved, like no Congress in History.”