The European Union is waiting to see the scale of UK Prime Minister Theresa May's expected parliamentary defeat on her Brexit deal before considering its response, officials said, with some predicting that she will have to delay Britain's departure from the bloc.
When the Prime Minister chose to delay the meaningful vote on her Brexit deal by a month because she was facing a historic defeat, with more than 100 Tories ready to vote it down, she pledged to gain legally binding assurances from the EU.
May postponed a planned vote on the deal in December after conceding it was set to be defeated, and is now seeking assurances which she hopes will persuade lawmakers to back the agreement when they vote on it on January 15.
"Rather than increasing the likelihood of a "no deal" outcome, we expect either the deal to scrape through, owing to last minute concessions to the key Brexit groups, or if parliament forces the government to adopt a different or more market positive Brexit stance", says Rochester.
But without the DUP's support, and with many of May's Conservative MP still strongly opposed, the deal can not pass.
Meanwhile, Business Secretary Greg Clark told the House of Commons that a no-deal Brexit "should not be contemplated".
Lawmakers approved a motion saying that if Parliament rejects May's divorce deal, the government must come up with a "Plan B" within three working days.
So if May came back with an alternative plan, that could be amended by MPs, giving parliament far more scope in setting the direction.
Pro-EU Conservative lawmaker Dominic Grieve, who proposed the measure, said it was meant to speed up decisions, to help avoid a no-deal Brexit and "the calamitous consequences that would follow on from it".
The amendment, put forward by pro-EU Tory MP Dominic Grieve, passed by a slim margin of 308 to 297, and cuts the time Theresa May is allowed to come up with a revised Brexit plan after any defeat from 21 days to just 3.
Immediately prior to today's crucial vote, the Speaker of the House, John Bercow, was forced to respond to over an hour of procedural questions from Tory MPs, most of whom were infuriated that the Speaker had allowed MPs a vote on the controversial amendment. On Tuesday, legislators in the House of Commons handed the government a symbolic defeat by backing an amendment to the Finance Bill that puts roadblocks in the way of government spending on "no-deal" preparations.
The Republic of Ireland's Prime Minister, Leo Varadkar, said he could not accept a situation where Northern Ireland was handed veto powers over the backstop measure either.
"We are doing everything we can to win the meaningful vote that happens on Tuesday", the prime minister's spokesman said.
While a majority of MPs may vote to take a "no deal" Brexit off the table, that would not legally oblige Mrs May's government to do so. And there is no clear majority in Parliament for any single alternate course. The petitions range from those calling for a no-deal Brexit, to those demanding a second referendum.
Labour leader Jeremy Corbyn.
Lewis's comments echoed those made by Sainsbury's chief executive, Mike Coupe, earlier this week that a no-deal Brexit would be "hugely disruptive".