Mr Davis said: "I don't think [Mrs May] win".
If the deal is rejected, it is unclear what happens next, with May insisting her deal was best for the country. Hopefully they will have substantive talks, we have lots of ideas of the sorts of things they could do to improve were we are now.
His intervention comes as friends of the top Brexiteer tell The Times that he expects Mrs May to resign on Wednesday, the day of the "meaningful vote" in parliament.
Senior Conservatives believe the Government will lose the crucial Commons vote on Tuesday and have told the PM to postpone the vote to avoid humiliation.
The Work and Pensions Secretary became the first Cabinet minister to publicly discuss the merits of a "Plan B" if Mrs May crashes to defeat in Tuesday's crunch Commons vote.
"Activating the backstop would result in immediate barriers to UK-EU trade in goods and services. the UK could face the threat of significant economic disruption which would reduce its leverage in the negotiations", the report said.
Ms Rudd told Today: "Hugo Swire has put an amendment down which I hope will give some of my colleagues reassurance over the so-called backstop".
"I think it will get through but I know it's going to be hard, because of people are still declaring against it".
"It does not give the British people or our businesses the clarity and the certainty they need about our future trading relationship with the European Union in five or ten years' time".
Soyuz heads to ISS on first manned mission
They are set to launch at 1131 GMT Monday aboard a Soyuz from Baikonur in Kazakhstan for a six-and-a-half month mission. It is reported by Roscosmos on Monday, December 3, reports the Chronicle.info with reference to the Correspondent.
Prime Minister Theresa May — Full Interview
May said the backstop was "an integral part of the withdrawal agreement ". "The backstop is talked about as if it's automatic". A petition with over 1 million signatures calling for a second vote was handed to the prime minister recently .
It's time to watch The Game Awards together
Check out the confirmed, and basically confirmed, games that we'll see at The Game Awards in the slideshow below. Though we we get a glimpse at the upcoming game, its release date is now "at least three years away".
"This deal is worse than all the alternatives", he said during the interview. The clock is running out and, while numerous Tories don't like the details, she was likely correct in saying that this was their last chance for a deal of any kind.
Amber Rudd says her preferred Plan B is a Norway style arrangement, which would see the United Kingdom stay in the single market.
"The withdrawal agreement we have will deliver the stability that we want, that our businesses need, the investment that we want".
The former Foreign Secretary refused to rule out a leadership bid against the Prime Minister, but said she could stay on even if MPs reject her Brexit deal this week. I am absolutely convinced.
While Trickett told Ridge: "We simply don't know what is going to happen on Tuesday night", in a near-perfect echo, Long-Bailey told Marr: "We'll have to see what happens on Tuesday".
Unfortunately, rather than trying to forge new alliances and smooth the waters, May has taken a hardline stance right from the start, effectively telling Parliament (and her own cabinet) that it was her way or the highway.
A rejection for Mrs May's deal could also boost the cause of campaigners calling for a second referendum.
The party wants a general election but shadow Cabinet Office minister Jon Trickett said Mr Corbyn would be prepared to lead a minority government this week.
It also said May's deal had avoided making choices about the future relationship with the European Union, meaning that negotiations would be needed which would likely go on for "a number of years".