WASHINGTON: Abandoning negotiations, President Donald Trump demanded a make-or-break vote on health care legislation in the House, threatening to leave “Obamacare” in place and move on to other issues if Friday’s vote fails.

The risky move, part gamble and part threat, was presented to GOP lawmakers behind closed doors Thursday night after a long and intense day that saw a planned vote on the health care bill scrapped as the legislation remained short of votes amid cascading negotiations among conservative lawmakers, moderates and others.

At the end of it the president had had enough and was ready to vote and move on, whatever the result, Trump’s budget director Mick Mulvaney told lawmakers.

“‘Negotiations are over, we’d like to vote tomorrow and let’s get this done for the American people.’ That was it,” Rep. Duncan Hunter of California said as he left the meeting, summarising Mulvaney’s message to lawmakers.

“Let’s vote,” White House chief strategist Steve Bannon said as he walked out.

“For seven and a half years we have been promising the American people that we will repeal and replace this broken law because it’s collapsing and it’s failing families, and tomorrow we’re proceeding,” House Speaker Paul Ryan said, then walked off without answering as reporters demanded to know whether the bill had the votes to pass.

The outcome of Friday’s vote was impossible to predict. Both conservative and moderate lawmakers had claimed the bill lacked votes after a long day of talks. But the White House appeared ready to gamble that the prospect of failing to repeal former President Barack Obama’s health law, after seven years of promising to do exactly that, would force lawmakers into the “yes” column.

“It’s done tomorrow. Or ‘Obamacare’ stays,” said Rep. Chris Collins, R-N.Y., a top Trump ally in the House.

Collins was among those predicting success on Friday, but others didn’t hide their anxiety about the outcome.

Asked whether Republicans would be unified on Friday’s vote, freshman Rep Matt Gaetz of Florida said, “I sure hope so, or we’ll have the opportunity to watch a unified Democratic caucus impeach Donald Trump in two years when we lose the majority.”

Thursday’s maneuvers added up to high drama on Capitol Hill, but Friday promised even more suspense with the prospect of leadership putting a major bill on the floor uncertain about whether it would pass or fail.

The Republican legislation would halt Obama’s tax penalties against people who don’t buy coverage and cut the federal-state Medicaid program for low earners, which the Obama statute had expanded. It would provide tax credits to help people pay medical bills, though generally skimpier than Obama’s statute provides. It also would allow insurers to charge older Americans more and repeal tax boosts the law imposed on high-income people and health industry companies.

The measure would also block federal payments to Planned Parenthood for a year, another stumbling block for GOP moderates.

In a concession to the conservative House Freedom Caucus, many of whose members have withheld support, the legislation would repeal requirements for insurers to cover “essential health benefits” such as maternity care and substance abuse treatment.

The drama unfolded seven years to the day after Obama signed his landmark law, an anniversary GOP leaders meant to celebrate with a vote to undo the divisive legislation. “Obamacare” gave birth to the tea party movement and helped Republicans win and keep control of Congress and then take the White House.