Senate Republicans hauled President Donald Trump’s big tax breaks and spending cuts bill to passage Tuesday by the narrowest of margins, pushing past opposition from Democrats and their own GOP ranks after a turbulent overnight session.

The outcome capped an unusually tense weekend of work at the Capitol, the president’s signature legislative priority teetering on the edge of approval or collapse. In the end that tally was 50-50, with Vice President JD Vance casting the tie-breaking vote.

Three Republican senators — Thom Tillis of North Carolina, Susan Collins of Maine and Rand Paul of Kentucky — joined all Democrats in voting against it.

“In the end we got the job done,” Senate Majority Leader John Thune of South Dakota said afterward.

The difficulty for Republicans, who have the majority in Congress, to wrestle the bill to this point is not expected to let up. The package now goes back to the House, where Speaker Mike Johnson of Louisiana had warned senators not to overhaul what his chamber had already approved. But the Senate did make changes, particularly to Medicaid, risking more problems ahead. House GOP leaders scheduled a Wednesday vote and vowed to put it on Trump’s desk by his July Fourth deadline, which is Friday.

It’s a pivotal moment for the president and his party, as they have been consumed by the now 887-page “One Big Beautiful Bill Act,” which was its formal title before Democrats filed an amendment to strip out the name. Republicans are investing their political capital in delivering on their sweep of power in Washington.

Trump acknowledged it’s “very complicated stuff” as he departed the White House for Florida.

“I don’t want to go too crazy with cuts,” he said. “I don’t like cuts.”

What started as a routine but laborious day of amendment voting, in a process called vote-a-rama, spiraled into an all-night slog as Republican leaders bought time to shore up support.

The droning roll calls in the chamber belied the frenzied action to steady the bill. Grim-faced scenes played out on and off the Senate floor, amid exhaustion.

Thune worked around the clock, desperately reaching for last-minute agreements between those in his party worried the bill’s reductions to Medicaid will leave millions more people without care and his most conservative flank, which wanted even steeper cuts to hold down deficits ballooning with the tax cuts.

The GOP leaders had no room to spare. Thune could lose no more than three Republican senators, and two — Tillis, who warned that millions of people will lose access to Medicaid health care, and Paul, who opposes raising the debt limit by $5 trillion — had already indicated opposition.

Attention quickly turned to two other key senators, Lisa Murkowski of Alaska and Collins, who also raised concerns about health care cuts, as well as a loose coalition of four conservative GOP senators pushing for even steeper reductions.