She looks to have postponed a moment of reckoning in the deeply divided legislature by promising lawmakers they will be given the chance next month to block a no-deal Brexit and delay Britain's exit day if her agreement is rejected.
George Eustice on Thursday resigned as the British farming and fisheries minister over Prime Minister Theresa May's promise to allow MPs a vote on a possible delayed Brexit if her deal is rejected.
Almost three years ago, reeling from a hammer blow to decades of European integration after Britons voted to leave, many EU leaders would have seized any chance to put the genie back in the bottle.
May's government has already vowed to protect the rights of those in Britain but agreed to try to encourage a joint European Union approach.
Corbyn announced Monday that Labour would support a second Brexit referendum if the amendment was defeated.
The move had gained wide support across the political spectrum, and the government agreed to support it to avoid an embarrassing defeat in Parliament.
A minister has quit the Government over Theresa May's decision to allow MPs to vote on extending Brexit negotiations beyond the scheduled withdrawal date of March 29.
British Prime Minister Theresa May is seeking changes to a withdrawal agreement struck with the European Union late past year, which she hopes will be enough to get it through parliament's lower House of Commons.
Mrs May has now promised that if her latest deal is voted down, lawmakers will get a chance to vote on whether to leave with no deal or to ask the E U to delay the deadline.
He said Brussels has "deliberately made progress slow and difficult" in the talks.
The UK government is launching a TV campaign to urge Britons to be ready for a no-deal Brexit, the country's top civil servant said.
Mr Eustice is a longstanding Brexiteer, who stood as a UKIP MEP candidate before joining the Conservatives.
French President Emmanuel Macron said the European Union would agree to extend the Brexit deadline only if Britain justified such a request with a clear objective.
"That such an amendment is needed is in itself a very sad state of affairs", said Alberto Costa, the Conservative lawmaker behind the motion.
French officials have said Paris would agree to delay Brexit only if that came with a credible solution, for example if Britain called an election, held a second referendum, or presented a new plan that was acceptable to all sides but needed more time to be finalized.
Irish drivers have been warned they will need a special insurance document to cross the now invisible border to Northern Ireland after next month if the United Kingdom leaves the European Union without a deal.
In an interview in the Financial Times on Wednesday, leading Brexiteer Jacob Rees-Mogg indicated that he might be willing to squint hard and accept a de facto, rather than legally airtight, assurance that Britain will not be indefinitely trapped in the EU's customs union in order to prevent a hard border in Ireland.