The stopgap spending bill, passed by voice vote in the Senate, averted the government shutdown that would have happened if a bill hadn't passed by midnight. The Senate is expected to approve it soon after the House sends it over and then send it to the President to sign ahead of the midnight deadline.
The delays caused a headache for the White House, which had been hoping to have more on the books before Trump reaches his 100-day mark in office on Saturday.
But the health care effort was temporarily abandoned as Republican congressional leaders acknowledged there weren't enough votes for the GOP health care plan - called the American Health Care Act - largely because of opposition to some provisions by moderate Republicans.
"I think it's sad that we're here at the last minute trying to kick the can down the road", said Rep. Jim McGovern, D-Mass.
The measure would give Republican and Democratic lawmakers an additional week to work out differences on about US$1 trillion (S$1.4 trillion) in funding for the government through Sept 30, the end of the current fiscal year.
"The proposed changes to this bill would leave too many of my constituents with pre-existing conditions paying more for health insurance coverage and too many of them will even be left without any coverage at all", said Rep. Ileana Ros-Lehtinen, R-Fla., who remains opposed. If 22 Republicans defect, the bill would fail, assuming all Democrats opposed it.
House Speaker Paul Ryan, R-Wis., wants to avoid an encore of last month's embarrassment, when he abruptly canceled a vote on a health care overhaul because of opposition from moderates and conservatives alike.
Republicans have recast it to let states escape a requirement under former president Barack Obama's 2010 law that insurers charge healthy and seriously ill customers the same rates. But Democrats pushed back and were hopeful that the measure would not contain many items they deemed "poison pills". Leaders of the House and Senate Appropriations Committees, with input from bipartisan leadership and the White House, are still haggling over the final points.
Top Capitol Hill negotiators reached a hard-won agreement on a huge $1 trillion-plus spending bill that would fund the day-to-day operations of virtually every federal agency through September, aides said Sunday night.
The massive spending measure, which would wrap together 11 unfinished spending bills into a single omnibus bill, represents the first real bipartisan legislation of Trump's presidency. But Trump and defense hawks have procured a $15 billion infusion for the Pentagon and funds for other border security accounts such as detention beds for people entering the country illegally.
After flirting with a vote on the new measure this week - a move that angered Democrats - Republicans backed away, acknowledging they were shy of the votes needed to get them across the finish line. Government medical research would be suspended.
Senate Majority Leader Mitch McConnell (R., Ky.), whose state is home to retired miners who benefit from the health-care program, said Friday on the Senate floor that he would "continue to fight on their behalf to secure a permanent solution on this issue in the larger funding bill".