Senate leaders were scrambling to save a bipartisan spending deal and avert a partial government shutdown at midnight Friday as Democrats have demanded new restrictions on federal immigration raids across the country.

Senate leaders have a bipartisan funding deal in hand but it remains to be seen whether they will avert a costly government shutdown as the clock ticks down toward Friday’s midnight deadline.

Federal funding is set to lapse at midnight Friday, and votes are still required in both chambers of Congress.

The Senate’s race to avert a shutdown hit the skids late Thursday night as Sen. Lindsey Graham (R-S.C.) placed a hold on the government funding package, forcing leaders to punt the vote. Senators had been hoping to vote on the so-called minibus after leaders struck a deal earlier in the day and President Trump

Senate Democrats say Republicans have agreed to separate DHS funding from a package of five other appropriations bills that have already passed the House but have not yet cleared the Senate.

House conservatives are expressing skepticism as Senate Democrats and the White House announce a deal has been reached to fund the government without a long-term DHS funding bill.