Today the government avoided an embarrassing defeat on a key Brexit vote by offering concessions to Remainer Tory MPs.
The government averted a rebellion on Tuesday over whether Parliament should have a decisive say in such a scenario. That supposedly, according to BBC's Political Editor Laura Kuenssberg, drew a colorful response from a pro-EU Tory rebel: "If she f**ks us, she's f**ked".
Solicitor General Robert Buckland intervened four times during a speech by the former Attorney General Dominic Grieve, whose amendment would effectively give MPs a veto on the government's negotiating agenda if a deal isn't done by the end of November.
May says the changes would weaken the government's negotiating position, and the government will try to alter or reverse them in the House of Commons on Tuesday and Wednesday. "We will now work with the government to get acceptable amendments tabled in the Lords to address this".
Parliament will vote Tuesday on a key piece of legislation, the E.U. Withdrawal bill, that would transfer European Union laws now on British books into British law after Brexit.
MPs will hold further votes on the EU Withdrawal Bill on Wednesday, including a House of Lords demand for the United Kingdom to remain in the EU's single market.
"Anything that undermines the government at home will make negotiations with the European Union more hard", May told a meeting of her cabinet. One pro-Brexit minister insisted the rebels had lost, and warned that if they continued to fight May they would only make a "no deal" divorce more likely. "We will have to go away, think about it and come back and make a statement".
The government's victory was the first major win in two days of debates on its European Union withdrawal bill, which will sever ties with the European Union, after the upper house of parliament, the House of Lords, introduced 15 changes.
Just hours before the vote, the pressure on Ms. May's preferred approach is temporarily keeping the U.K.in some form of temporary customs union with the E.U., but this is unacceptable to hardline Brexiteers in her party.
"The decision was taken by the people, we gave them that decision and we have to stand by it", said Conservative MP Bill Cash.
Under the proposal, if no deal has been reached with Brussels by this point, the government will return to the House of Commons to determine the next course of action. "There could be a confidence motion [in the prime minister] or an early general election".
The Government made a series of late concessions to backbench MPs who were minded to rebel behind closed doors, meaning the true nature of what has been agreed is not yet clear.
Prior to the votes, the government suffered its first ministerial resignation over Brexit as Phillip Lee quit the Ministry of Justice so he could speak out freely.
During a five-hour debate, MPs reinstated the precise day the United Kingdom will leave the European Union - 29 March 2019 - in the proposed legislation while backing an amendment on the Irish border, guaranteeing there will be no new border arrangements without the agreement of the United Kingdom and Irish authorities.
Liberal Democrat Brexit spokesman Tom Brake said: "As has become a tradition in Brexit negotiations, the Tories have been forced to cobble together a compromise".