That's because May has been unable to persuade Brussels to change the agreement, which her team negotiated a year ago, and put in legally binding reassurances that the United Kingdom will not become trapped in a long-term customs arrangement with the European Union.
It is understood this would be a legally binding interpretation of the Withdrawal Agreement, but it would not alter the text of the agreement.
May's government has been scrambling since a deal she presented to parliament in January was voted down in the one of the strongest defeats in recent history.
Participating would put the United Kingdom government at odds with Brexiters.
May's spokesman, Slack, said the vote "will take place tomorrow", but it was unclear exactly what motion would be put to lawmakers.
"Tonight we will be laying two new documents to the House - a joint legally binding instrument on the withdrawal agreement and a joint statement to supplement the political declaration", he added.
He said: "If all that's happening is to turn this letter into an interpretative tool for legal purposes, I remind the house what the prime minister said on 14 January about this letter". As a result, she can not be forced from office for a year.
"It looks as though she's bringing back the same deal so it looks as though we will have the same result and it will be thrown out", Shadow Chancellor John McDonnell said.
The prospect of a vote on no-deal could also deepen the divisions within the Cabinet, potentially leading to further ministerial resignations.
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.
British backpacker Catherine Shaw missing in Guatemala Catherine Shaw, 23, from Witney, Oxfordshire, has been travelling since September a year ago and was reported missing on March 5. On Friday the trust said Ms Shaw's father was travelling to San Pedro to join the search with volunteers in the area.
The wording of the motion that parliament votes on will be subject to amendments. The Environment Secretary declared that "everyone who believes in democracy" should get behind the Prime Minister's deal.
MPs will vote whether to leave without a deal on March 13.
However, May could come back with another attempt at a meaningful vote at some point over the course of the week, especially if she only loses by a narrow amount. May promised to secure the required changes and re-introduce the agreement in parliament. "It is this deal, or #Brexit may not happen at all".
Cabinet minister Andrea Leadsom said on Saturday Parliament would be given more opportunities to vote on the deal if the European Union improves its offer before exit day.
Brexit-supporting lawmakers in Britain fear the backstop could be used to bind the country to European Union regulations indefinitely.
If May's deal is rejected, the government has promised to give lawmakers the chance to show they want to pursue leaving the European Union without a formal deal.
Labour MP Pat McFadden said any vote had to be on the Brexit deal, as now constituted, and not a version of the deal ministers might hope to end up with after further talks with the EU.
However, "Parliament could choose to hold another vote of no confidence in her government, which they did after the last meaningful vote", said Maddy Thimont Jack, a researcher at the Institute for Government in London.
Their face-to-face talks are due to start in an hour.
And May doesn't really have much way in stopping that from happening as if she delays those votes further, expect a massive uproar in parliament to happen.
For her part, Muguruza says that she took no pleasure from her unconventional victory against one of the sport's all-time greats. Sixth-seeded Elina Svitolina also advanced, holding of Australian Daria Gavrilova 7-5, 6-4.
A source told ESPN's Dianna Russini that the deal is for one year, $4.5 million and could be worth up to $5.75 million. Former Miami Dolphins wide receiver Danny Amendola has signed with the Detroit Lions , the team announced Monday.
Sources told ESPN on Sunday that the Bucs were actively shopping Jackson and that Philadelphia was his desired landing spot. His playing time was reduced in the second half of last season, but he's still an effective interior pass-rusher.
I love this way more than I thought that I would. 'Ohhhh don't break kayfabe (wrestling secrets) Ronda!' Wrestling is scripted. Her hiatus, meanwhile, is expected to be temporary as it is believed that she is contracted to the WWE until 2021.
He returned in 2018, but five games into the campaign, Tinker suffered another knee injury and missed the remainder of the season. The Jacksonville Jaguars may be in the market for a new quarterback, but that doesn't mean they are cutting Blake Bortles loose.
Overall, she said it was not an experience she would like to repeat. " You don't want to live that twice ", she said. Chauvin said she wasn't aware of any injuries but believes one person may have felt unwell after exiting.
It could, however, face some regulatory hurdles in China, where Mellanox has major customers such as Alibaba and Baidu. Mellanox, originally founded in Israel, has a long history of collaboration and joint innovation with Nvidia.
For perspective, England all-rounder Moeen Ali was penalised by the ICC for wearing "Save Gaza" and "Free Palestine" wristbands. The permission they took was for a different goal but they acted differently.
Algerian president reportedly home amid mass protests
He was deposed in a bloodless military coup in 1965 that set the stage for a series of generals serving as presidents. Thousands of protesters in the Algerian diaspora protested Sunday in Paris and other French cities.
Molinari wins at Arnie's event
It led to a 5-under 67 and a one-shot lead over Rory McIlroy going into the final round of the Arnold Palmer Invitational. He finished the round by holing a nine-foot birdie putt at the 18th that briefly left him in sole possession of the lead.
Woman says she distracted jaguar after attack at Arizona zoo
Wildlife World Zoo announced the incident on Twitter , urging visitors to "please understand why barriers are put in place". Wilkerson captured video of the panicked woman in the aftermath of the attack, which was widely distributed to the media.
Prodigy star Flint died from hanging: inquest
A postmortem was carried out at Broomfield hospital on 7 March and the provisional medical cause of death was recorded as hanging. Coroner's officer Lynsey Chaffe revealed the findings of the report during a two-minute hearing in Chelmsford, Essex.