(CNN) — The House has passed a bipartisan Bill to avert a government shutdown just hours ahead of a midnight deadline, setting up a Senate vote over funding the US federal government for another 45 days.

House Speaker Kevin McCarthy announced the proposal Saturday morning, following weeks of in-fighting between House Republicans.

The bill, which includes the natural disaster aid that the White House requested, must now be approved by the Senate before the end of the day Saturday, in order to prevent a lapse in funding.

The bill does not include $6 billion in funding to aid Ukraine, a key concession that many House Republicans demanded and a blow to allies of Ukrainian President Volodymyr Zelensky, who lobbied Congress earlier this month for additional assistance.

Asked if he is concerned that a member, including Republican Rep. Matt Gaetz of Florida, could move to oust him over this bill, McCarthy replied, “;If I have to risk my job for standing up for the American public, I will do that.”;

Infighting among House Republicans has played a central role in bringing Congress to a standoff over spending – and it is not yet clear how the issue will be resolved, raising concerns on Capitol Hill that a shutdown, if triggered, may not be easy to end.

Democrats in the House have been trying to slow down passage of the GOP-led continuing resolution throughout the day Saturday, objecting to being forced to vote on a bill just introduced and wanting to keep Ukraine aid. It’;s unclear how long Democrats will stall the House from voting.

House Republicans met throughout Saturday morning, seesawing between options for how to proceed. Republicans including veteran appropriators and those in swing districts pushed to bring a short-term resolution to keep the government funded for 45 days to the House floor for a vote Saturday.

McCarthy has faced threats to keeping his job throughout the month if he works with Democrats as he endures a consistent resistance from the hardline conservatives in his own party.

A shutdown is expected to have consequential impacts across the country, from air travel to clean drinking water, and many government operations would grind to a halt – though services deemed essential for public safety would continue.

Both chambers are scheduled to be in session Saturday, just hours before the deadline. The Senate was expected to take procedural steps to advance their own plan to keep the government funded – GOP Sen. Rand Paul had vowed all week to slow that process beyond the midnight deadline over objections to the bill’;s funding for the war in Ukraine. The Senate is now waiting to see how the House developments shake out before proceeding.

But Paul told CNN on Saturday afternoon that he won’;t slow down the Senate’;s consideration of the House GOP’;s 45-day spending bill, if it passes the House and the Senate takes it up, allowing the Senate the ability to move the bill quickly – though any one other senator could slow that down beyond the midnight deadline.

House Republicans have so far thrown cold water on a bipartisan Senate proposal to keep the government funded through November 17, but they have failed to coalesce around a plan of their own to avert a shutdown amid resistance from a bloc of hardline conservatives to any kind of short-term funding extension.

“;After meeting with House Republicans this evening, it’;s clear the misguided Senate bill has no path forward and is dead on arrival,”; McCarthy wrote on X. “;The House will continue to work around the clock to keep government open and prioritize the needs of the American people.”;

His late Friday night message came after a two-hour conference meeting in the Capitol, where McCarthy floated several different options – including putting the Senate bill on the floor or passing a short-term bill that excludes Ukraine money. But there is still no consensus on what – if anything – they will put on the House floor Saturday to avoid a government shutdown.

McCarthy suffered another high-profile defeat on Friday when the House failed to advance a last-ditch stopgap bill.

In the aftermath of Friday’;s failed vote, McCarthy told reporters he had proposed putting up a “;clean”; stopgap bill, and said he was “;working through maybe to be able to do that.”;

“;We’;re continuing to work through – trying to find the way out of this,”; McCarthy said.

The Senate’;s bipartisan bill would provide additional funds for Ukraine aid, creating a point of contention with the House where many Republicans are opposed to further support to the war-torn country.

McCarthy argued on Friday that aid to Ukraine should be dropped from the Senate bill. “;I think if we had a clean one without Ukraine on it, we could probably be able to move that through. I think if the Senate puts Ukraine on there and focuses on Ukraine over America, I think that could cause real problems,”; he told CNN’;s Manu Raju.

The Senate, meanwhile, is working to advance its own bipartisan stopgap bill. The chamber is on track to take a procedural vote Saturday afternoon to move forward with the bill, particularly if the last-minute House bill falters. But it’;s not yet clear when senators could take a final vote to pass the bill and it may not happen until Monday, after the government has already shut down.

Border security has also become a complicating factor for the Senate bill as many Republicans now want to see the bill amended to address the issue.

Senate Republicans said Friday that they were still discussing what kind of border amendment they would want to add to the bill, and were unsure if the chamber could even advance the bill in Saturday’;s procedural vote without the addition of a border amendment.

“;Nothing’;s really coming together, too many moving parts at this stage,”; said Sen. Mike Braun, an Indiana Republican. “;I think what I understand is we’;re going to have a vote tomorrow … and other than that, there’;s nothing that’;s really crystallized in anything that probably would be palatable with the House.”;

This story and headline have been updated with additional developments.

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