WASHINGTON — Lawmakers today unveiled a huge $1 trillion-plus spending bill that would fund most government operations through September but would deny President Donald Trump money for a border wall and rejects his proposed cuts to popular domestic programs.

The 1,665-page bill agreed to Sunday is the product of weeks of negotiations. It was made public in the predawn hours today and is tentatively scheduled for a House vote on Wednesday.

The catchall spending bill would be the first major piece of bipartisan legislation to advance during Trump’s short tenure in the White House.

While losing on funding for the wall along the U.S.-Mexico border, Trump won a $15 billion down payment on his request to strengthen the military, though that too fell short of what he requested.

The measure funds the remainder of the 2017 budget year, through Sept. 30, rejecting cuts to popular domestic programs targeted by Trump such as medical research and infrastructure grants.

Successful votes later this week would also clear away any remaining threat of a government shutdown — at least until the Oct. 1 start of the 2018 budget year.

Trump has submitted a partial 2018 budget promising a whopping $54 billion, 10 percent increase for the Pentagon from current levels, financed by cutting to foreign aid and other nondefense programs by an equal amount. Negotiators on the pending measure, however, rejected a smaller $18 billion package of cuts and instead slightly increased funding for domestic programs.

Democrats were quick to praise the deal.

“This agreement is a good agreement for the American people, and takes the threat of a government shutdown off the table,” said Senate Minority Leader Chuck Schumer, D-N.Y., a key force in the talks. “The bill ensures taxpayer dollars aren’t used to fund an ineffective border wall, excludes poison pill riders, and increases investments in programs that the middle class relies on, like medical research, education and infrastructure.”

Some Republican conservatives, however, were wary. “I think you’re going to see conservatives have some real concerns with this legislation,” Rep. Jim Jordan of Ohio said, citing domestic spending obtained by Democrats and other issues. “We told (voters) we were going to do a short-term spending bill that was going to come due at the end of April so that we could fight on these very issues, and now it looks like we’re not going to do that.”

Trump said at nearly every campaign stop last year that Mexico would pay for the 2,000-mile border wall, a claim Mexican leaders have repeatedly rejected.

The administration sought some $1.4 billion in U.S. taxpayer dollars for the wall and related costs in the spending bill, but Trump later relented and said the issue could wait until September.

Trump, however, obtained $1.5 billion for border security measures such as 5,000 additional detention beds, an upgrade in border infrastructure and technologies such as surveillance.

The measure is assured of winning bipartisan support in votes this week; the House and Senate have until midnight Friday to pass the measure to avert a government shutdown.