Just days after claiming that "many" furloughed government workers told him they're fine with not getting paid as long as he secures additional funding for a border wall, President Donald Trump tweeted Thursday morning that "most of the people not getting paid are Democrats."

Trump, who offered no support for his claim, fired off the tweet early Thursday morning as the government shutdown entered its sixth day. Trump said on Christmas Day that he will not reopen the government until he gets $5 billion in funding for a wall along the U.S.-Mexico border.

Have the Democrats finally realized that we desperately need Border Security and a Wall on the Southern Border. Need to stop Drugs, Human Trafficking,Gang Members & Criminals from coming into our Country. Do the Dems realize that most of the people not getting paid are Democrats? — Donald J. Trump (@realDonaldTrump) December 27, 2018

Democrats have said they won't provide Trump with that funding, and indicated they won't go beyond the $1.6 billion that has already been allocated for border wall purposes. Republicans and Democrats reached an agreement last week on a stopgap spending measure to prevent a shutdown — a deal that the White House signaled Trump would sign. But at the eleventh hour, Trump scuttled the agreement because it did not provide additional funding for a border wall.

Democratic senators responded on Twitter to Trump's early morning comment.

This is outrageous. Federal employees don’t go to work wearing red or blue jerseys. They’re public servants. And the President is treating them like poker chips at one of his failed casinos. https://t.co/bxkt67E9Bq — Mark Warner (@MarkWarner) December 27, 2018

Once again, our “stable genius” President is spewing lies. US federal employees serve the United States—not one party. Guaranteeing that our dedicated government workers have financial security should not be a partisan issue. #ThursdayThoughts https://t.co/Q25iiKaYvR — Senator Bob Menendez (@SenatorMenendez) December 27, 2018

Speaking in the Oval Office on Tuesday, Trump said the U.S. must have "a wall, a fence, whatever they'd like to call it," before claiming that "many" furloughed workers want him to keep the government closed until he locks in wall funding.

"Many of those workers have said to me, communicated, 'stay out until you get the funding for the wall,'" he said.