More on the cabinet meeting from the Telegraph's deputy political editor:

House of Commons
Parliament

Shadow leader of the Commons Valerie Vaz asks whether it is the government's understanding that, if a deal is not passed this week, the only extension to Article 50 that would be automatic would be until 12 April.

The longer extension agreed by leaders, to 22 May, would be "if we show purpose", she says.

In reply, Commons leader Andrea Leadsom says the statutory instrument will make 22 May the new date for Brexit, if the PM's deal is approved before Friday evening.

"Otherwise, it would be 11pm on 12 of April," she adds.

The World at One
BBC Radio 4

The Institute for Government's deputy director Hannah White says indicative votes are "very tricky things" to use as "you may not get an answer".

Dr White says there could be "a whittling down of the options" and then on Monday "there could be a run-off of the most popular options".

She adds that it is "conceivable" for the prime minister's deal to end up being the most popular option.

"At the end of the day, if Parliament chooses something the government thinks is absolutely unacceptable and if MPs were to legislate to compel the government to do that, the only other option would be to call a general election," she says.

House of Commons
Parliament

Leader of the House Andrea Leadsom tells the Commons: "The PM will continue to have discussions with colleagues across the House to seek to build support for her deal so that we can - if possible - this week approve the deal and guarantee Brexit.

Linking to a Daily Telegraph story on a poll, saying that "most voters believe Parliament is trying to block Brexit", the ERG chairman tweets that they're "not wrong".

House of Commons
Parliament

Image source, HoC

Making an update on parliamentary business, Commons leader Andrea Leadsom says the statutory instrument to amend the date for Brexit in British law will be debated tomorrow.

This will reflect the extension of the Article 50 procedure agreed between EU leaders at their Brussels summit, she says.

Following her tweet earlier that cabinet ministers had gone back into 10 Downing Street, Laura Kuenssberg has tweeted this:

Image source, PA

Speaking at Leinster House in Dublin, Sinn Fein leader Mary Lou McDonald describes the DUP's approach to Brexit as "absolutely reckless and dangerous".

"You can't have part of the island inside the European Union and the other part outside of the European Union and imagine that there won't be huge consequences for trade and our economy - but also, critically, for the enjoyment of rights by our citizens and for the smooth operation of the Good Friday Agreement," she says.

Ms McDonald adds: "They are very much out of step with public opinion in the north.

"I think they're very well aware of that and yet they are quite content to play very, very dangerous games with their friends in the Tory Party."

The World at One
BBC Radio 4

When asked if there will be a free vote on tomorrow's indicative vote, children's minister Nadhim Zahawi says: "I suspect there must be."

He says he will vote for the prime minister's deal, adding "all other options are recipes for chaos".

"It is either no Brexit, chaos, or the prime minister's withdrawal agreement," he says.

The World at One
BBC Radio 4

BBC political correspondent Ben Wright has been talking to MPs about the Brexit process

Conservative Desmond Swayne says there is "an increasing perception that it is this deal or no Brexit".

Labour's Ben Bradshaw says: "Parliament has taken back control and any prime minister who tried to withstand the will of Parliament would be finished."

Norman Smith
Assistant political editor

BBC assistant political editor Norman Smith says while things are "looking bad for Mrs May", it is "not necessarily game over yet" and she still might have a chance of getting her deal through Parliament.

“The hope of team May is that Brexiteers may frankly get spooked when they see Parliament beginning to chart a course to a slower, softer Brexit and may conclude, 'perhaps we are better to back Mrs May’s deal'," he says.

The former Foreign Office minister has just shared his resignation letter to the prime minister.

In it, he writes that he has "supported strongly" Theresa May's efforts to leave the EU with a deal, and will vote for it again "should the chance arise".

But, he adds, "I am immensely frustrated and disappointed that a number of colleagues have refused to do so.

"This has put at risk something in which I firmly believe that, following the referendum result, the best way forward for our nation is to leave the EU, but leave it well with an agreement about our future."

In terms of voting in favour of Sir Oliver Letwin's amendment, he says that "we need urgently to bring this to a conclusion, and I felt it right to demonstrate that".