Lib Dem leader Vince Cable says Theresa May's authority is "draining away".

He adds that it is Jeremy Corbyn's "duty" as leader of the opposition to move a motion of no confidence.

Image source, AFP/Getty Images

The deputy chair of the pro-Brexit European Research Group has said the government may not be able to simply pull the vote on the withdrawal agreement.

Speaking outside a Conservative Friends of Israel event in central London, Mark Francois said: "I'm not sure procedurally they can pull the vote as easily as they want."

He said he wanted the debate and vote on the deal to go ahead as planned, adding: "We want to vote on this once and for all."

House of Commons
Parliament

Image source, HoC

Shadow housing secretary John Healey says in the midst of today's "political chaos" he wonders whether it is worth questioning the housing, communities and local government secretary at all, as cabinet ministers "don't seem to really be told what government policy is".

A Foreign Office minister has criticised the claims of his former boss Boris Johnson for his Brexit comments on the backstop over the Irish border.

Boris Johnson told Andrew Marr at the weekend that the UK should withhold payments to Brussels and prepare to leave the EU without a deal.

Reacting to DUP deputy leader Nigel Dodds supporting the former foreign secretary, Sir Alan Duncan said on BBC Two's Politics Live that Mr Johnson was the "last person on Earth who would make any progress in negotiating with the EU at the moment."

Dr Catherine Haddon, from the Institute for Government, says the Brexit timetable is "all thrown up".

She adds that MPs will need to vote on the agreement at some point but Theresa May "could keep pushing this down the line".

The amount of time Mrs May has depends on whether her own MPs decide to trigger a leadership contest, she says.

House of Commons
Parliament

Over in the Commons, business is getting started with MPs asking Housing, Communities and Local Government ministers questions.

Conservative MP Scott Mann kicks things off with a question on land value capture.

The prime minister is expected to give a statement to MPs around 15:30 GMT.

Image source, Getty Images

One of the more memorable quotes of the Brexit saga was ascribed to an anonymous source within the Democratic Unionist Party, in Northern Ireland.

"This is a battle of who blinks first - and we've cut off our eyelids."

As Prime Minister Theresa May wonders how she will get her Brexit deal through Parliament, it's understood that she's pushing the EU for a little wiggle room.

And that raises the question: does Brussels ever blink?

Read more from our Reality Check here.

House of Commons
Parliament

A busy afternoon in the House of Commons will begin at 2.30pm with housing, communities and local government questions, before Theresa May makes a highly anticipated statement on exiting the EU at 3.30pm.

After the prime minister's speech, Leader of the House Andrea Leadsom will deliver a revised business motion, setting out changes to business in the Commons for the days ahead.

Brexit Secretary Stephen Barclay will then deliver a statement responding to the European Court of Justice's ruling on the potential for Article 50 to be revoked.

The ECJ this morning ruled that the UK can cancel Brexit without the permission of the other 27 EU members.

Shadow justice secretary Richard Burgon describes Theresa May as "a lame duck prime minister" and calls on her to step aside.

"If Theresa May doesn't bring the vote that is admittance that she can't command the confidence of the House," he says.

He says that Labour would pursue a "a common sense approach that would protect jobs and protect sovereignty".

BBC Radio 5 live

In breaking news, a group of expats has failed in a High Court bid to have the result of the EU referendum declared void because of overspending by pro-Leave campaigners.