The Democratic retreat reopened the deep fissures within the party that emerged in March, when a bloc of Democratic senators, led by Mr. Schumer, voted with Republicans to keep the government open, prompting a progressive backlash.
The shift this time was particularly remarkable given that the legislation Republicans have offered does not address Democrats’ main demand in the shutdown fight: the
extension of health insurance tax credits that are slated to expire at the end of the year.
Instead, the Democratic splinter group appeared to have received a commitment from Senator John Thune, Republican of South Dakota and the majority leader, to allow a vote in December on extending the tax credits for a year. Many Democrats have said for weeks that such a pledge would be insufficient to win them over, since such a bill has appeared all but certain to die in the Republican-led Congress.
The core of the compromise that now appears to be on the brink of moving ahead is a spending package that is the product of negotiations among a group of moderate senators in both parties. It includes a new stopgap measure that would fund the government through January, plus three separate spending bills to cover programs related to agriculture, military construction and legislative agencies for most of 2026.
Those three bills, released on Sunday by the Senate Appropriations Committee, omit most of the deep spending cuts that Mr. Trump had proposed in his budget this year.
Still, the deal was causing intense consternation across wide swaths of Democrats, from progressives to moderates.
Senator Bernie Sanders, the Vermont independent who caucuses with Democrats, said any retreat from the party’s demands on health care would be “a policy and political disaster.”