WASHINGTON — With a resounding no, the House rejected President-elect Donald Trump’s new plan Thursday to fund federal operations and suspend the debt ceiling a day before a government shutdown, as Democrats and dozens of Republicans refused to accommodate his sudden demands.

In a hastily convened evening vote punctuated by angry outbursts over the self-made crisis, the lawmakers failed to reach the two-thirds threshold needed for passage — but House Speaker Mike Johnson appeared determined to regroup, before Friday’s midnight deadline.

“We’re going to do the right thing here,” Johnson said ahead of the vote. But he didn’t even get a majority, with the bill failing 174-235.

The outcome proved a massive setback for Trump and his billionaire ally, Elon Musk, who rampaged against Johnson’s bipartisan compromise, which Republicans and Democrats had reached earlier to prevent a Christmastime government shutdown.

It provides an preview of the turbulence ahead when Trump returns to the White House with Republican control of the House and Senate. During his first term, Trump led Republicans into the longest government shutdown in history during the 2018 Christmas season, and interrupted the holidays in 2020 by tanking a bipartisan COVID-relief bill and forcing a do-over.

Hours earlier Thursday, Trump announced “SUCCESS in Washington!” in coming up with the new package which would keep government running for three more months, add $100.4 billion in disaster assistance including for hurricane-hit states, and allow more borrowing through Jan. 30, 2027.

“Speaker Mike Johnson and the House have come to a very good Deal,” Trump posted.

But Republicans, who had spent 24 hours largely negotiating with themselves to cut out the extras conservatives opposed and come up with the new plan, ran into a wall of resistance from Democrats, who were in no hurry to appease demands from Trump — or Musk.

House Democratic Leader Hakeem Jeffries said Democrats were sticking with the original deal with Johnson and called the new one “laughable.”

“It’s not a serious proposal,” Jeffries said as he walked to Democrats’ own closed-door caucus meeting.

All day, Johnson had been fighting to figure out how to meet Trump’s almost impossible demands — and keep his own job — while federal offices are being told to prepare to shutter operations.

The new proposal whittled the 1,500-page bill to 116 pages and dropped a number of add-ons — notably the first pay raise for lawmakers in more than a decade, which could have allowed as much as a 3.8% bump. That drew particular scorn as Musk turned his social media army against the bill.