Theresa May may travel to Brussels to meet Jean-Claude Juncker - or she may not, with confusion surrounding Mrs May’s gameplay. 

Leaders in Belfast, Brussels and Dublin are all refusing to back down from their demands, which leaves Mrs May in a near-impossible position. 

With the DUP threatening to pull their support for the Tories in Westminster, Mrs May knows she must keep leader Arlene Foster onside. 

Yesterday, however, the unionist leader refused to visit London for talks and expressed surprise Mrs May had arranged a phone call. 

And Irish PM Leo Varadkar has also said Ireland will not stray from the terms already agreed earlier this week with Mrs May and approved with the EU before Ms Foster’s intervention. 

Dublin has a veto which could block talks progressing to trade unless the country is happy with Mrs May’s assurances on the Irish border. 

Brussels says it is happy to talk to Mrs May whenever she is ready - although Mr Juncker has warned Mrs May he is “out of town” at the end of the week, a not-so-subtle hint to speed up the Brexit process. 

Live updates below...

7.45pm - DUP says talks with May are ongoing

The DUP has confirmed talks with the PM are ongoing as Arlene Foster and Theresa May try to find a way to break the impasse over the Irish border.

A DUP spokesman said: "There is still plenty of work to be done. The (government and DUP) teams in London are continuing to work through the detail."

6.50pm - David Davis unlikely to face contempt proceedings

David Davis appears unlikely to face contempt proceedings, despite earlier being accused of obstructing the House of Commons from carrying out its job.

The committee on Exiting the European Union agreed the following resolution: "That, in view of the statement that no impact assessments have been undertaken, the Committee considers that the Government’s response to the resolution of the House of 1 November has complied with the terms of that resolution."

The committee voted 11-8 in favour of the idea that “ impact assessments have been undertaken”.

The Brexit Secretary will be able to sleep a little easier now...

6.30pm - More details emerge about May's call with Varadkar

A Downing Street spokesperson has shed some light on the topics discussed in this afternoon's phone call between the prime ministers of Britain and Ireland.

The spokesperson said: “They both agreed about the paramount importance of no hard border or physical infrastructure at the border between Ireland and Northern Ireland. 

“The Prime Minister said how she recognised the significance of this issue to the people of Northern Ireland and Ireland and how this remained a joint priority for both Governments, and the EU, to resolve.

“The Prime Minister said we are working hard to find a specific solution to the unique circumstances in Northern Ireland that respects the integrity of the UK, the European Union and the Belfast Agreement.

“She added that we are committed to moving together to achieve a positive result on this as well as restoring devolved Government to Northern Ireland. Both leaders looked forward to continuing relations as close neighbours and allies as the negotiations progress.”

5.50pm - Tory Remainers urge Theresa May to ignore 'highly irresponsible' Brexiteers

Theresa May has been urged to ignore the Brexiteers telling her to leave the negotiating table in a letter signed by 19 Remain-backing MPs, including former Cabinet ministers Nicky Morgan, Stephen Crabb and Dominic Grieve.

They say it is “highly irresponsible to seek to dictate terms which could lead to the UK walking away from these negotiations” and accuse those Brexiteers urging the Government to walk away of ignoring those who have warned about the uncertainty a no deal scenario would create.

The letter, seen by Buzzfeed News reporter Alex Spence, urges the PM not to rush into an agreement and concludes by telling her to "take whatever time is necessary to get the next stage of the UK's relationship with the EU right".

While pledging support to the PM, the letter reveals more about the deep divides within the Conservative Party and suggests Mrs May has a lot more battles to face.

5.15pm - May takes a quick break from Brexit to switch on the Downing Street Christmas lights

After a difficult day of phone calls for the PM, Theresa May has taken a quick break to switch on the Downing Street Christmas lights along with a school choir, who sang a rendition of 'Silent Night'.

Hard to imagine Mrs May is enjoying many silent nights at the moment...

5.00pm - May to speak with Varadkar again this week as Irish leader vows to stand firm

Leo Varadkar and Theresa May will speak again this week, according to the Irish prime minister's spokesman, perhaps suggesting today's call didn't achieve very much.

Varadkar's spokesman told reporters: "The Taoiseach (prime minister) reiterated the firm Irish position regarding the text as outlined by him on Monday."

Sinn Fein's Michelle O'Neill has also urged Varadkar not to back down.

She told Sky News: "We need the Taoiseach to stand firm in the national interest" and ensure what was agreed is not retracted.

4.50pm - Former Lib Dem leader calls for David Davis' resignation

Tim Farron (remember him?) has called for the resignation of Brexit Secretary David Davis and accused him of working out the government's strategy "on the back of a fag packet".

The former Lib Dem leader, who stepped down after this year's general election, didn't mince his words as he urged the PM to oust her Brexit minister.

He said: "David Davis needs to go. He has misled parliament and under his leadership the Brexit department has turned incompetence into an artform.

"I am not one to call for ministerial resignations every two minutes and I've nothing against David Davis as a person, but it is now clear he deceived MPs. He is also writing the government's Brexit strategy on the back of a fag packet.

"Forget Brexit, we need Dexit: an exit from the duplicity and dither of David Davis."

4.35pm - May speaks to Varadkar

Theresa May has spoken to her Irish counterpart Leo Varadkar this afternoon, according to a Downing Street statement.

The pair had agreed a proposal on Monday which would have allowed Brexit talks to move onto the second phase, but the DUP, which props up May's minority government, was unhappy at the prospect of being offered a different EU deal to the rest of the UK.

4.00pm - DUP warns Ireland is playing a 'dangerous game'

The DUP's deputy leader Nigel Dodds has accused Irish Taoiseach Leo Varadkar of playing a "dangerous game" by suggesting the border agreement might not be secured until after this month's EU summit.

After the DUP refused to agree to the wording of a border deal that Dublin said had been agreed between Britain and the EU, the Irish government have now demanded the wording must remain the same.

Mr Dodds said: "The longer there is delay in getting onto the second phase of the negotiations about a trade deal, the greater the prospect of a 'no trade deal' outcome."

2.52pm - Juncker will meet May 'any time'

Jean-Claude Juncker is prepared to meet Mrs May at any time - including next week. 

He told European Commissioners he would work to avoid a government collapse in UK and to reach a deal. 

Will Kirby is taking over live reporting from Joey Millar

1.35pm - Rees Mogg fears red lines turning pink

Jacob Rees-Mogg has suggested the Prime Minister adopt a tougher stance with Brussels.

During PMQs he asked Mrs May: "Before the Prime Miniter next goes to Brussels, will she apply a new coat of paint to her red lines?

"Because I fear on Monday they were beginning to look a little bit pink."

Mrs May said: "I can happily say that the principles on which this Government is negotiating was set out in the Lancaster House speech, they were set out in the Florence speech, and those principles remain."

12.50pm - PMQs ends

PMQs is over. 

Read our full coverage here. 

12.23pm - PMQs gets big screen treatment

PMQs is being shown in the European Parliament on big screens. 

In the House of Commons, an SNP MP claims the DUP appears to have a "veto over Brexit".

There won't be many watching in Brussels who disagree with that sentiment. 

12.18pm - May compares Labour with Ireland

Theresa May, in response to a question about Ireland, refuses to answer the question adn instead highlights Labour's divisions. 

She chortles: "The only hard border I can see is the one through the middle of the Labour party."

That probably sounded good in Downing Street but it's not exactly a quip that will help talks progress in Dublin. Or Brussels. Or Belfast.

12.17pm - 'Shambles'

Back to PMQs. 

Mr Corbyn asks the Prime Minister to clarify whether David Davis had actually created an impact assessment on Brext. 

He said: "This really is a shambles."

12.16pm - Vardkar's Twitter trolling

Irish Taoiseach Leo Varadkar has sent a tweet congratulating Finland on its 100th anniversary of declaring independence from Russia. 

He then not-so-subtly linked it so last year’s Irish celebrations on the 100th anniversary of the Easter Rising, a rebellion against Britain. 

He tweeted: “Congratulations Finland on 100 years. Ireland's centenary celebrations last year were a great source of pride.

“With Finland, Ireland is honoured to have such a good friend ogether with us in the EU.”

12.12pm - Corbyn hits out

It's not going to be a hard day at the office for Mr Corbyn, is it?

His first question is essentially just a description of the last 48 hours of Brexit chaos. What else needs to be said?

Theresa May responds by saying Labour is still divided on Brexit. 

12.10pm - PMQs 

PMQs has begun with Mrs May giving an update on Brexit talks. 

Theresa May said: “We will do what is right in the interests of the whole of the United Kingdom. 

“Nothing is agreed until everything is agreed.” 

She later added: "Very good progress has been made." 

Everyone shouts for a bit. 

Follow our live coverage here. 

11.50am - Greens call for Davis sacking

The Greens are also calling for Mr Davis to be sacked. 

Co-leader Caroline Lucas said: "This is beyond farcical. Davis is either grossly incompetent, or someone who struggles with the truth and treats MPs with contempt.

"Either way, he should be out of his job."

11.35am - ‘Put Davis in Tower of London’

Labour MP David Lammy has hit out at Mr Davis. 

He said he should be “put in the Tower of London”, offering to walk Mr Davis there himself. 

He tweeted: "It is time to put David Davis in the Tower of London for contempt of Parliament. I will meet him outside this hearing and walk him down the Embankment myself."

11.20am - ‘No deal’

The DUP believe there will be “no deal this week”, following this morning's phone call between Mrs May and Ms Foster. 

The Sun is reporting the party do not believe anything can be achieved by the weekend.

This isn’t good news. Mrs May needed to offer something to Brussels and Dublin by the weekend to have any hope of going into next week’s Summit with a concrete game plan. 

It appears we are moving ever closer to a no deal scenario. 

10.50am - Contact at last but still issues

DUP sources said Mrs May and Ms Foster had a constructive phone call but issues remain. 

They said their were "ends to tie up" in London. 

10.30am - May and Foster talk

According to Sky's Ireland correspondant, Theresa May and Arlene Foster are finally holding a phone call. 

Sky cited DUP sources who said the call is currently ongoing. 

10.20am - What a difference a year makes

Twelve months ago Mr Davis said: “We are in the midst of crying out about 57 sets of analysis, each of which has implications for individual parts of 85 per cent of the economy.”

Today he said these assessments were not available and their hypothetical value “is near zero”. 

10.00am - Davis under fire

The reaction from elsewhere in Parliament isn’t pretty for Davis. 

Labour and Co-op MP Seema Malhotra said “David Davishas just admitted that the Government have not conducted a single economic impact assessments on the impact to Brexit to our economy.

"Staggeringly. A dereliction of duty.”

Labour MP Bill Esterson said: “Did he know that the impact assessments didn’t exist when he said they did? It was either incredibly incompetent or incredibly dishonest. 

“Either way, how is Davis still in his job?”

SNP Joanna Cherry said: “The evidence of David Davis just now re: non-existence of Brexit impact assessments would appear to directly contradict what he and other UK government ministers have previously told Commons committees. 

“This is pretty serious.”

9.50am - Davis says relax

More from David Davis. He said the long-promised impact assessments will be conducted "later" - and that even then the Government will not release the findings. 

You can’t help but feel this isn’t going to make things easier for Mrs May at PMQs in two hours or so. 

9.45am - Davis admits no impact assessments available

David Davis is speaking to the Brexit Select Committee and things are already heating up. 

He has essentially admitted no Brexit impact assessments on any aspect of the UK economy have been produced.

Theresa May’s chief Brexit negotiator said he is “not a fan” of them. 

9.30am - Weber speaks with Varadkar

German MEP and leader of the European People’s Party Group Manfred Weber has spoke to Irish Taoiseach Leo Varadkar. 

Mr Weber tweeted this morning: “I had a phone call with the Taoiseach Leo Varadkar and assured him that we stand by our Irish friends regarding Brexit. 

“A hard border within Ireland is unacceptable.”

9.10am - Europe reacts to Brexit breakdown

Europe is not holding back at sticking the boot in following this week's Brexit bungling. 

A Spanish minister mocked “a case of disunited kingdoms”, a French newspaper referred to a “string of capitulations” and a German radio station said Brexit was “political idiocy”. 

Read our full story here.

8.40am - Anger at IDS 

Lots of anger in Ireland at Iain Duncan Smith’s clumsy comments last night. 

He sparked fury when he described the Ireland border issue and fears of a return to violence as “this Irish stuff”. 

He said: “You know this Irish stuff was not at this state some months ago - now it suddenly becomes an issue between the Irish for political reasons internally, presidential elections…”

Irish Times news editor Mark Hennessy tweeted in response the Brexiteer was “a fool or a liar”.

Iain Duncan Smith's claims the Irish issue has "suddenly" burst to life comes after more than 18 months of increasingly panicked warning from leaders in both Dublin and Belfast about the impact of Brexit on Ireland. 

Even long before the referendum the topic was raised in Ireland - and ignored in Westminster. 

And the former Tory leader's reference to the Irish presidential election is equally mystifying. The vote is largely symbolic and has no impact on foreign affairs. 

8.20am - Starmer first up

Good morning to Labour’s Shadow Brexit secretary Sir Keir Starmer.

He has reiterated Labour is prepared to keep membership of the single market and customs union up for negotiation following a transition period after withdrawal.

He told BBC Radio 4's Today programme: "We say leave that option on the table. We certainly wouldn't rule it out. We'd want to have a conversation.

"We are in the EU and we will leave the EU; the question then is, can we reach an agreement with the EU that gives us those benefits?"

8.15am - May’s Brexit riddle

A good tweet about Theresa May’s Brexit conundrum from legal expert David Allen Green:

“A Prime Minister has a soft Brexit cross party majority in the House of Commons, Ireland supported by EU27 and the DUP keeping her party in government. 

“How does she get all three to the other side of the river when she can only carry two at a time?”

Answers on a postcard (preferably sent to Downing Street).

8.10am - Brexit debate

The European Union (Withdrawal) Bill will also be discussed in Parliament today. 

Day five of the committee stay will kick off after PMQs at 1pm. As with PMQs, the timing could not be worse. 

8.00am - May set for PMQs showdown

Joey Millar here starting off today's live blog. 

Mrs May has a gruelling schedule ahead of her today - with the weekly Prime Minsters Questions only adding to the load. 

The weekly shouting match has come at a bad time for Mrs May with Labour leader Jeremy Corbyn sure to stick the boot in, despite his own party’s Brexit chaos. 

We’ll be covering the fun and games as it starts at midday. Follow it live here.