President Trump on Tuesday cast doubt on Washington's ability to avoid a government shutdown, writing on Twitter that he didn't believe a deal could be reached with Democrats.

The tweet came hours before Trump is to meet at the White House with GOP congressional leaders as well as Senate Minority Leader Charles Schumer Chuck SchumerJacobin editor: Primarying Schumer would force him to fight Trump's SCOTUS nominee CNN's Toobin: Democrats are 'wimps' who won't 'have the guts' to add Supreme Court seats Republican senator says plans to confirm justice before election 'completely consistent with the precedent' MORE (D-N.Y.) and House Minority Leader Nancy Pelosi Nancy PelosiTrump puts Supreme Court fight at center of Ohio rally CDC causes new storm by pulling coronavirus guidance Overnight Health Care: CDC pulls revised guidance on coronavirus | Government watchdog finds supply shortages are harming US response | As virus pummels US, Europe sees its own spike MORE (D-Calif.).

"Meeting with 'Chuck and Nancy' today about keeping government open and working," Trump tweeted.

ADVERTISEMENT

"Problem is they want illegal immigrants flooding into our Country unchecked, are weak on Crime and want to substantially RAISE Taxes. I don’t see a deal!"

Meeting with “Chuck and Nancy” today about keeping government open and working. Problem is they want illegal immigrants flooding into our Country unchecked, are weak on Crime and want to substantially RAISE Taxes. I don’t see a deal! — Donald J. Trump (@realDonaldTrump) November 28, 2017

Democrats have demanded that a funding deal include language to protect young undocumented immigrants known as "Dreamers" who are threatened with deportation next year because of Trump's decision to end an Obama-era program.

The White House and Republicans in Congress have countered with heavy demands on border enforcement.

The current funding bill, brokered in a surprise deal between Trump and Democrats in September that caught Republicans off-guard, expires on Dec. 8. The deal also irritated congressional Republicans and conservatives, which could explain Trump's tweet on Tuesday.

In the past, Trump has flirted with the idea of a government shutdown, saying that it might be necessary in order to win support for a wall on the Mexican border.

There has been some talk of a short-term deal, lasting a matter of weeks, that could provide time for the White House and lawmakers to negotiate a longer funding deal for the rest of the fiscal year ending on Sept. 30.

Another complication is the fight over separate legislation to change the tax code. Democrats oppose the measure, which may receive a Senate vote this week.

Trump hopes to complete work on the tax bill before the end of the year, but that will require Senate passage and then another round of talks to work out differences between the House and Senate tax bills. Both chambers would also have to vote on the compromise bill.

All of that has the potential to raise tensions surrounding the funding bill, where Democrats and Republicans have differences that go well beyond the thorny immigration issue.

This report was updated at 9:55 a.m.