LONDON — British Prime Minister Theresa May battled to salvage a draft Brexit deal and her political future on Thursday, as ministers resigned and members of her own party plotted to oust her.

The Conservative leader said she believed with “every fiber of my being” in the Brexit course she had set, hours after facing a hostile parliament and seeing four ministers, including Brexit Secretary Dominic Raab, quit the government.

Members of parliament on all sides warned her there was no way the plan could win their approval, but she dismissed calls to quit, saying: “Am I going to see this through? Yes!”.

The prime minister accepted there were “concerns about the backstop” solution to the Irish border question within the deal, which Brexit supporters said could keep Britain tied indefinitely into a customs union.

They also believe May has conceded too much to Brussels in other key areas, while EU supporters are calling for a second referendum on a final deal.

May said there would not be a second vote “as far as I’m concerned”.

The 585-page draft aims to ensure a smooth divorce from the EU after more than four decades of membership and outlines a transition period for both sides to adjust to the break.

Key provisions seek to avoid a hard border between EU member Ireland and the British province of Northern Ireland, protect citizens’ rights and settle Britain’s last bill.

Amid the political turmoil, the pound dropped by 2.0 percent against the dollar to a one-month low and a similar amount against the euro.

The European Research Group of Brexit hardliners met to plot her removal on Thursday, with leader Jacob Rees-Mogg submitting a letter of no-confidence in the prime minister saying: “It would be in the interest of the party and the country if she were to stand aside.”

At least 48 letters from Conservative MPs are required to trigger a vote of no-confidence in the party leader, but a majority of the party’s 315 lawmakers would have to vote against May in order for her to be ousted.

Although other MPs have already sent letters, all eyes were on Rees-Mogg given his influence over Brexit supporting MPs.

The MP told reporters that a challenge could be launched within weeks.

“The parliamentary processes can be sped up,” he said, suggesting a time frame of “not months, but ...weeks”.

May went into battle after Raab resigned over the draft deal, while a second Cabinet minister and two junior government ministers also walked out.

EU leaders will hold an extraordinary Brexit summit on Nov. 25.

If they approve the agreement, the British parliament is scheduled to vote on it in early December.

Raab said there would be a devastating impact on public trust in the government unless it changed course on Brexit.

“I cannot reconcile the terms of the proposed deal with the promises we made to the country in our manifesto,” he said in his resignation letter.

“I must resign.”

Brexit hardliner Esther McVey also quit her work and pensions secretary post.

Suella Braverman resigned as a junior Brexit minister and Shailesh Vara quit as a junior Northern Ireland minister.

In parliament, Jeremy Corbyn, leader of the main opposition Labour Party, told May: “The government must now withdraw this half-baked deal.

“This is not the deal the country was promised.”

May had secured her Cabinet’s “collective” approval for the agreement during a stormy five-hour meeting on Wednesday and European leaders hailed the tentative deal.

German Chancellor Angela Merkel said she was “very happy” that the EU and Britain had reached a draft agreement but French Prime Minister Edouard Philippe warned the prospect of Britain crashing out without a deal was “still on the table”.

In Brussels, EU President Donald Tusk said member states would have until Tuesday to examine the deal and to agree the wording of a parallel political statement setting out goals for the bloc’s future relations with London.

The agreement was also welcomed along the Irish border — the focus of negotiations on a legal guarantee to keep the economically vital frontier between the Republic of Ireland and the British province of Northern Ireland free-flowing.

“If Theresa May has got any sort of a deal I think it’s a miracle. She went to the table with very little to offer and asked for a lot,” said businessman Patrick Hughes, owner of an animal feed business in the border village of Jonesborough.

“I think she was fed to the lions a bit,” he said. — AFP