Forty British members of parliament from British prime minister Theresa May's Conservative Party have agreed to sign a letter of no-confidence in her, the Sunday Times newspaper reported.
That is eight short of the number needed to trigger a party leadership contest, the mechanism through which Mrs May could be forced from office and replaced by another Conservative.
Mrs May has been struggling to maintain her authority over her party since a snap election on June 8th which she called thinking she would win by a wide margin but instead resulted in her losing her parliamentary majority.
Mrs May also faces a devastating Commons defeat over Brexit within weeks if she continues to deny parliament a meaningful vote on the final deal with the EU, Tory and Labour MPs have warned.
With the withdrawal Bill returning to the Commons on Tuesday, a cross-party group who oppose a hard Brexit and are co-operating on tactics say they believe they have the numbers to defeat the government if they are denied such a vote.
While the critical amendments and closest votes are not expected to be taken until next month, Tories who oppose a hard Brexit insist there is no softening of their position and that they are biding their time ready to strike before Christmas.
Some Tories say they are even more determined to insist on parliament’s right to veto a bad or no deal because the prime minister appears not to have responded to any of their concerns over recent weeks.
Instead, in what was seen by many as a provocative move, she announced last week that the government had tabled its own amendment that would commit the UK to formally leaving on March 29th, 2019, whatever the outcome of negotiations and even if there were no deal.
Meanwhile, a secret memo to Mrs May written by Boris Johnson and Michael Gove dictating terms for a hard Brexit has emerged.
Underline her resolve
In blunt terms, the pair tell the prime minister to "underline her resolve" to achieve a total break with Brussels, and name June 30th, 2021 as the fixed end of Britain's transition period after leaving the EU in March 2019.
The missive will undoubtedly lead critics to say the prime minister is being held hostage by the leading Brexiters.
A Commons defeat for Mrs May over Brexit, at a time when her government is reeling from the loss of two cabinet ministers in six days - and may lose more - would raise further questions over her ability to survive as prime minister.
Anna Soubry, a Tory rebel who strongly backs a veto for MPs, criticised May's amendment as a sop to the anti-EU wing of the party. She said it had been "done to appease the hard Brexiters and keep them on Theresa's side".
She added: “It is not necessary and, indeed, will tie the government’s hands. I will need some persuading not to vote against it.”
The cross-party group, which includes around a dozen Tory backbenchers and former Conservative ministers, has calculated privately that, if the expected number of pro-Brexit Labour MPs back the government, they will probably need 11 Conservative MPs to vote with them to inflict a defeat.
One MP closely involved in the cross-party moves said: “We already have very close to that number and there could be more.”
Another senior MP said Tories with seats in Scotland in which there had been strong support for Remain before the Brexit referendum were coming under heavy pressure from constituents to vote for any amendment that would prevent a hard Brexit.
Dominic Grieve
Ten Conservative MPs have put their names to an amendment, tabled by the Conservative former attorney general Dominic Grieve, which calls for the final withdrawal deal to be approved through a separate statute, which would mean MPs would get the vote they seek.
Chuka Umunna, the Labour co-chair of the cross-party group on EU relations, said he believed enough Tory MPs would stand firm.
“There is a Rubicon to be crossed - to put country before party and career - and I sense that more and more Conservatives are prepared to do it,” he said.
“They believe they have been led up the garden path before and won’t make that mistake again. They will not be bullied by a prime minister who dances to the tune of the hard-right in their party.”
Keir Starmer, the shadow Brexit secretary, has accused Mrs May of ignoring concerns across all parties and in the country about the withdrawal bill. He said the government could be heading for defeat on up to 13 amendments tabled by Tory rebels.
However, ministers offered no concessions on Friday and now face criticism from MPs across parliament during 16 hours of debate about the bill this week.
Mr Starmer said: "Theresa May cannot keep ignoring the serious concerns Labour and her own MPs have about the withdrawal bill. The prime minister could have used the bill's delay to rethink her approach and accept Labour's reasonable and considered demands on what needs to change - in particular the wide use of Henry VIII powers, protections for workers' rights and environmental standards, and ensuring strong transitional arrangements are in place when we leave the EU." - Reuters / The Guardian