The chair of the 1922 Committee of Conservative MPs reveals he won't even tell his wife how many letters he's been sent.

Image source, Reuters

Austrian Chancellor Sebastian Kurz has told Die Presse, a daily broadsheet, that he is not ready to reopen negotiations on the draft withdrawal deal.

“We think the deal is a good one, and so it's not about renegotiating but deciding on the present draft.

"The next week will be intense, because of course it will be crucial if there is a majority for a vote of no confidence in Prime Minister May.

"In any case, as the EU Presidency, we have made all the preparations to move forward swiftly.”

Asked if Europe should help Mrs May get her deal through Parliament, he said: “Unfortunately that is not in our hands but is Britain’s decision.

"However, I do not understand why some British politicians long for a hard Brexit.

"That would damage the EU, but above all it would damage Great Britain.

"A disorderly Brexit could become a massive economic challenge for the British."

Theresa May held a conference call with Conservative Association chairs on Friday.

Among them was Brigadier Peter Sharpe from Devizes Conservatives Association who said there was "a lot of criticism, a lot of questions".

"But in the main, I think the mood I picked up was that people are supportive of the prime minister.

"And there were lots of concerns about specific issues - up north they're worried about fishing, and so on.

"There were something like 20 questions and I thought they were answered rather well."

BBC Sunday Politics South West

Image source, UK Parliament

Gary Streeter, the Conservative MP for South West Devon, says the prime minister should threaten a second referendum with the option of her deal or Remain.

This, he says, would "focus minds" of members of the pro-Brexit European Research Group, who say they would rather no deal than Mrs May's deal.

Sky News

Image source, Getty Images

Conservative MP Mark Francois, of the European Research Group, suggests more letters calling for a confidence vote in the PM might be forthcoming on Monday.

He tells Sky News his colleagues would be taking soundings from local workers and their loved ones this weekend, would sleep on it tonight and decide in the morning.

The MP for Rayleigh and Wickford said he doubted there would be another referendum - "we had a people's vote in 2016".

Asked what changes were needed in the existing agreement for him to vote for it in Parliament, he said it was "rotten to the core".

He argued it had been negotiated so we effectively remain in the EU by a small group of extremely pro-EU civil servants who had never accepted the referendum result.

"I'm afraid we will have to go back and start negotiations again," he said, adding that no deal would be better than "this nonsense".

So far 25 Conservative MPs have publicly said they have submitted letters to the chair of the 1922 Committee of backbench Conservatives - Graham Brady.

If he receives letters from 48 MPs (that's 15% of the total number), a secret ballot is triggered.

If Mrs May wins, they cannot challenge her premiership for another year.

But, if she loses, there will be a leadership election and she will not be allowed to run.

Is your constituency MP one of them? Read the full list of names here.

BBC Radio Stoke

Image source, PA

Sir Bill Cash, Conservative MP for Stone, has confirmed that he's submitted a letter of no confidence in the prime minister.

The Sunday Telegraph first reported his decision and he's now confirmed that to BBC Radio Stoke, saying the current Brexit deal doesn't fulfil promises.

His letter brings the total number who have publicly said that they have sent Graham Brady a letter to 25. Forty-eight are needed to trigger a contest.

Andrew Sinclair
BBC Look East political correspondent

Image source, PA

The Brexit-supporting MP Peter Bone has said changing prime minister is the only way to secure the Brexit that people have voted for.

Mr Bone, who founded the Grassroots Out movement, told Sunday Politics East that he had spent the weekend taking soundings in his constituency and "people are very cross".

"It's a big thing to put in a letter of no confidence in your leader and I never thought I would do that" he said.

"I've been trying to persuade the prime minister to change her policy, but I went to see her this week and she's adamant that she's not going to change her policy so the only way I'm going to change the policy is to change the prime minister".

Talking about the time it has taken to secure a deal, he said: "Could it have been done better in the negotiations? Absolutely.

"Could it have been done sooner? Absolutely, but it wasn't and we've got to get rid of this draft agreement."

John Pienaar
Pienaar’s Politics

In his BBC 5 Live interview, Sir Graham Brady stressed things would move quickly if the 48 letter threshold needed to trigger a confidence vote in Mrs May's leadership was reached.

"The rules are very clear, that if a threshold were to be reached, I would have to consult with the leader of the party.''

Asked if that would be immediate, he said: 'The whole thing is written with the intention that it should be an expeditious process.

"I think one of the crazy things that's taken hold over the last few weeks is people in the media and elsewhere suggesting that this could be something that would go on for weeks and that it's an entirely discretionary process for me - it's not."

The Andrew Marr Show

Dominic Raab has defended his comments about not realising the importance of Dover/Calais trade route for trade in goods, which drew widespread ridicule.

"Anyone that goes into a big job - if they are serious and they are not arrogant, or frankly ignorant, about it, learns more," he told Andrew Marr.

Mr Raab told Conservative MPs thinking of sending no-confidence letters to Sir Graham Brady, chairman of the 1922 Committee, they should support the prime minister.

He told Andrew Marr: "It's a total distraction from what we need to do, we need to get Brexit over the line, we need to support our Prime Minister.

"I have got huge respect for her, I wrote that in my resignation letter, it is not flim-flam.

"I have worked very closely with her on Brexit and I think there is still the opportunity to get this right, support the PM - but she must also listen and change course on Brexit."

The Andrew Marr Show

Mr Raab said that he had held talks with Cabinet ministers including Andrea Leadsom who want to make late changes to Theresa May's Brexit deal.

He told Andrew Marr: "We have been talking over the last week intensely. Everyone wants to do the right thing and support the Prime Minister."

Asked to confirm that talks had included Mrs Leadsom and other ministers thought to be working to introduce last-minute alterations, he said: "I only resigned on Thursday morning so I can't say I have had extensive conversations.

"But I am willing to talk and be as constructive as I can.

"The difficulty for me is that I was being asked to go over to Brussels and sign on the bottom line with Michel Barnier on a deal which I said in good conscience I did not feel was right for the country."

The Andrew Marr Show

Former Brexit Secretary Dominic Raab insisted he still supports Theresa May and would not back a leadership challenge against her.

"I will support this prime minister and I want her to get this right."

But he said he did not think her deal would get through Parliament as it stands, and he would vote against it.