Virginia's Democratic senators say they will oppose the House plan to fund the government, putting the bill on an increasingly uphill path in the Senate.

"We oppose the House Continuing Resolution, which punts budget discussions until mid-February," Sens. Mark Warner Mark Robert WarnerIntelligence chief says Congress will get some in-person election security briefings Overnight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' House approves bill to secure internet-connected federal devices against cyber threats MORE and Tim Kaine Timothy (Tim) Michael KaineBarrett seen as a front-runner for Trump Supreme Court pick Biden promises Democratic senators help in battleground states Second GOP senator to quarantine after exposure to coronavirus MORE said in a joint statement Thursday.

"Republican leadership has to get serious about finding a budget deal and quit relying on short-term patches."

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Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellMomentum growing among Republicans for Supreme Court vote before Election Day Trump expects to nominate woman to replace Ginsburg next week Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE (R-Ky.) has almost no room for error to pass the funding bill through his chamber, assuming it first passes the House

With two GOP senators already opposed, he will need at least 11 Democratic senators to support the continuing resolution (CR) for it to pass.

Kaine and Warner both supported a December funding bill. Now that they have come out against the latest spending patch, there are 12 Democratic senators on the fence, according to The Hill's whip count.

Congress has until midnight Friday to prevent a shutdown.

Democrats argue the House bill doesn't address a myriad of issues, though the stalemate on what to do about immigration has emerged as the key sticking point.

Warner and Kaine said in their statement that Congress should stay in town until they get a larger budget deal.

"We will support a short-term CR for a few days to keep the government open while we stay in town and conclude our negotiations," they said.