The EU, which had warned there would be no more changes or negotiations if Parliament threw out the deal, expressed exasperation at yet another Brexit crisis.
With the approaching deadline intensifying fears that economic and personal turmoil might follow a "no-deal" withdrawal by Britain, Parliament voted 321-278 Wednesday to rule out the possibility. Both lawmakers and the public remain split between backers of a clean break from the European Union and those who favor continuing a close relationship, either through a post-Brexit trade deal or by reversing the June 2016 decision to leave.
She claims the changes now means the Irish backstop - the insurance policy created to avoid a hard border in Ireland - could not "become permanent".
Mrs May promised lawmakers a vote on her deal this Tuesday.
During the joint conference with European Commission President Jean-Claude Juncker, May clearly stated that "MPs were clear that legal changes were needed to the backstop".
To guide the Eurosceptics, the deal was due to be examined by a committee of eight lawyers in the ERG, including Sir Bill Cash and the former Brexit secretary Dominic Raab.
"Now is the time to come together to back this improved Brexit deal and deliver on the instruction of the British people".
The UK Attorney General Geoffrey Cox had a direct, one-word comeback to a report on Twitter about his Brexit legal advice - b****cks.
The EU said it had made significant concessions as two additional documents were agreed to back up the withdrawal agreement struck in December past year - a joint legally binding instrument which the United Kingdom could use to start a "formal dispute" against the EU if it tried to keep the United Kingdom tied into the backstop indefinitely and a joint statement committing both sides to find an alternative to the backstop by the end of the Brexit transition period of December 2020. We may not know which way they will go until during the Brexit debate this afternoon in the House of Commons.
The vote will take place on 13 March.
She told parliament that she has struggled with the need to honor the 2016 Brexit referendum results while also getting a good deal from Brussels, adding that if MPs vote to leave with no deal, that will become official government policy.
How Brexit could pan out in the lead up to exit day on March 29th.
If they vote yes to extend Article 50 then the United Kingdom will ask for a short extension. She declined to appear at an urgent question called by the Labour leader, Jeremy Corbyn, who said parliament would not tolerate further delay.