Boris Johnson's former communications director has been talking about his one-time boss.

Guto Harri told BBC Radio Wales those close to the former foreign secretary had repeatedly urged him to rethink his stance on Brexit, saying: "He has to do a great big mea culpa and say 'sorry folks, we got it wrong. It was never a good idea to leave the European Union. It's now patently clear to all of us so let's jump off this train before it crashes'."

But Mr Harri, who worked for Mr Johnson when he was Mayor of London, adds: "I don't think even Boris could pull that off any more."

He adds that Mr Johnson might reinvent himself in a role such as British ambassador to Washington or principal of his alma mater, Balliol College, Oxford.

Theresa May warns her party it must unite after a string of resignations over Brexit forced a reshuffle.

It seems the European Union's chief negotiator Michel Barnier is staying tight-lipped on the UK government's recent turmoil.

"I don't want to make any comment on domestic and national policy, in [the] UK in particular," Mr Barnier is quoted as saying on arrival at the Council of Foreign Relations in New York. "I've never commented, from the very beginning of these negotiations, [on] internal and domestic policy in political situation in the UK."

In the Commons, the Liberal Democrats have tabled an opposition day debate on the handling of the Brexit negotiations.

Leader Sir Vince Cable complains that "all of this is being discussed in a Westminster bubble" and that something of such constitutional change should require a second, confirmatory, referendum before being implemented.

Cabinet Office Minister Chloe Smith rebuffs the suggestion, saying she is "absolutely clear" there will be no second referendum and that the motion undermines the progress in negotiations so far.

In last year's general election, she says, more than 80% of voters supported parties which called for the EU referendum result to be respected. The UK should be coming together to do just that, she adds.

Shadow Brexit Minister Jenny Chapman confirms that Labour isn't calling for a second poll but adds that the government's proposals for negotiations are "clearly dead in the water".

You can follow the debate via BBC Parliament's live page.

Former Foreign Secretary Lord Carrington - the last surviving member of Winston Churchill's post-war government - died yesterday, aged 99.

"Like many of his generation, he had the desire to seek out a peaceful solution to conflict, an aim he followed throughout his career. It also instilled in him a sense of honour and an acceptance that he would take full responsibility for his actions. And it was this that led him to take the blame for the government's failure to anticipate the invasion of the Falkland Islands by Argentina in 1982."

Read our obituary.

Ireland's Taoiseach (prime minister) Leo Varadkar says the resignations of David Davis and Boris Johnson are "internal matters" for the British government.

Speaking during question time in the Irish parliament, he welcomed the Chequers statement setting out the UK's negotiating position.

"If the UK is able to relax from some of its red lines, then the European Union should be flexible too. I think perhaps we are now entering into that space," he said. Mr Varadkar said he looked forward to reading the British government's White Paper, which is to be published on Thursday.

The Ministry of Justice has been handed more than £17m to prepare for scenarios including a no-deal Brexit, the Press Association reports.

It says Justice Minister Lucy Frazer insisted the department was working towards getting the best deal for the UK, in response to a Commons question from Tory Brexiteer William Wragg about provisions for the event that no agreement was reached with Brussels.

But she added: "Like all competent government departments, we are also working to ensure that if there is no deal we are ready for it. We have £17.3m extra from the Treasury to look into and ensure that we have the right Brexit scenario."

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Asked whether Theresa May's Brexit proposals are acceptable, Conservative MEP Daniel Hannan, a longstanding campaigner for the UK to leave the EU, describes them as "very close to the line".

"I could live with these terms... just. The worry is that they will be further watered," he says.

"I'm a bit more relaxed than some eurosceptics around alignment on goods. Most of these rules are set at global level, rather than European level, and the idea of Britain basing its economic recovery on some different specification of washing machine is silly."

However, former Labour MP and Vote Leave co-chair Gisela Stuart says she wants to read the fine print.

"This is a fight between politicians, against their voters. What 17.4 million people voted for was a clear expectation that there would be an end to the European Court of Justice [jurisdiction in the UK] and we would have final say over a whole host of laws including... a whole set of clear red lines the prime minister has set herself.

"When I read the fine print I will test that against her own red lines, and so far I'm worried she hasn't even met her own test."

Image source, EPA

Donald Trump goes on to describe Boris Johnson as "a friend of mine".

"He's been very, very nice to me, very supportive. Maybe I'll speak to him when I get over there," the US president tells reporters in Washington.

"I like Boris Johnson, I've always liked him."

Asked whether Mrs May should be replaced as prime minister, he says it's up to the people.

"I get along with her very well, I have a very good relationship. That's certainly up to the people, not up to me."

The American president has been talking about the political situation in Britain, ahead of his two-day visit later this week.

"It's going to be an interesting time in the UK and an interesting time at Nato," said Donald Trump, who attends a Nato summit in Brussels before arriving in the UK on Thursday.

"I have Nato, I have the UK - that's a situation with turmoil."

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Vernon Bogdanor, professor of government at King's College London, sums up the UK's choice as: "Either we diverge completely from the European Union, in which case we don't get frictionless trade, or we align ourselves with the European Union, in which case you may ask what is the point of Brexit."

He says that under Theresa May's plan to negotiate a free trade area for goods, the UK would only retain parliamentary sovereignty "in a technical sense". MPs could change any "common rulebook" alignment with Brussels but only if they were willing to lose the frictionless trade that came with it, he says.

"So we have in a way the shadow of Parliamentary sovereignty but we have lost the actual substance of being able to do what we like, and we also have no role outside the EU in making the rules by which we will be bound."

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Voters in Leave-voting Ramsgate are asked what they think about the handling of the UK's exit from the EU, in this non-scientific poll.

There has been some suggestion that as a result of the resignations there might be a delay in the publication of the government's white paper on EU withdrawal.

A number of politicians have suggested in interviews that the white paper - which will set out the UK's negotiating position with Brussels - was being delayed to next week.

However, the Department for Exiting the European Union has insisted that the white paper, which fleshes out the detail of the terms agreed at Chequers last week, will be published this Thursday.

We've not heard from the EU's chief negotiator Michel Barnier yet - he's expected to speak later. However, Irish senator Neale Richmond offers the BBC's Daily Politics some insight as to what the remainder of the EU's 27 member states think of Theresa May's plans...

An aside to the news that Lord Carrington has died is that he was the last foreign secretary to resign, prior to Boris Johnson leaving office of his own accord yesterday.

Image source, Getty Images

Only this morning, columnist Peter Oborne wrote in the Daily Mail, external that Lord Carrington's departure was "widely regarded as the most honourable resignation of modern times".

"He took full responsibility for failing to foresee Argentina’s intentions," he wrote, adding: "It has to be admitted that Boris Johnson's rushed decision to quit office yesterday lunchtime lacked the grace and gravitas of Lord Carrington’s departure."