The US Government shutdown could last until 2019, a top White House official has stated.
A stalemate over Donald Trump's fund demands for a Mexico border wall led parts of the government to shut down Saturday.
Mick Mulvaney told Fox News Sunday it is "very possible" the partial government shutdown will stretch into next year.
Mr Mulvaney, who is White House budget director and its acting chief of staff, said the White House presented a counteroffer in the dispute.
"It's very possible that this shutdown will go beyond the 28th and into the new Congress," he said.
He said he is awaiting word from Senate Democratic leader Chuck on this and declined to outline the offer further.
However, he said it is between President Trump's $5.7 billion request and the $1.3 billion Democrats offered.
The stalemate over the wall meant funding for numerous departments and agencies expired.
Both the House and Senate have adjourned until later in the week.
Democrats held firm Sunday in opposition to paying for a border wall.
This is a sticking point as it was a central promise of President Trump's campaign for president.
Sen Jeff Merkley, D-Ore, said the administration is sitting on most of the money Congress gave President Trump last year for border security, excluding a wall.
"If you're not going to spend nine out of 10 dollars on an issue, you obviously don't care about it that much," Sen Merkley said.
"This is politics, not policy."
On the second day of the federal closure, President Trump tweeted on Sunday what the country needs is "a good old fashioned WALL that works".
He said this was opposed to aerial drones and other measures that "are wonderful and lots of fun" but not the right answer to address "drugs, gangs, human trafficking, criminal elements and much else from coming into" the United States.
