As Boris Johnson forced to resign, the ensuing clamour for Tory leadership...

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• Follow updates live as Boris Johnson is set to resign
  
• Boris Johnson resignation: What happens now?
  
• Mason: Can Johnson stay on until the autumn?
  

Analysis by Chris Mason - Political editor, BBC News

Is it sustainable for Boris Johnson to carry on as prime minister until the autumn?
His supporters will argue that offers some semblance of continuity and stability at a time where there's not much of either.

Critics, such as Scotland's First Minister Nicola Sturgeon, are already arguing it isn't sustainable, given the huge number of vacancies in government.
Labour also think he should leave as prime minister now and there should be an interim prime minister until the autumn.
That argument will rage today.
And another will begin: who should be our next prime minister?
Read more from Chris here.

Nine candidates have now declared their intention to run to replace Boris Johnson -

Penny Mordaunt is the latest to declare 

• Tax is high on the agenda, with Sajid Javid and Jeremy Hunt both saying they will cancel the planned rise in corporation tax and reduce it further
  
• Jeremy Hunt denies tax cuts would exacerbate inflation, and says he would appoint Esther McVey as his deputy
  
• Sajid Javid says he stayed in government because he wanted to give Boris Johnson the benefit of the doubt
  
• Chancellor Nadhim Zahawi and Transport Secretary Grant Shapps have also joined the race
  
• Former chancellor Rishi Sunak is the current favourite and has suggested tax cuts will have to wait
  
• Former equalities minister Kemi Badenoch, Attorney General Suella Braverman and Tom Tugendhat, chair of the Commons foreign affairs committee, are also running
  
• Ben Wallace has ruled himself out of the running while allies of Liz Truss say she will throw her hat in the ring
  

Who's in the running to be Tory leader?

Here's a quick recap on who's in, and what they're talking about:

• Two former health secretaries - Sajid Javid and Jeremy Hunt - have declared plans to run for leader. Hunt's emphasising his credentials as the only major candidate who didn't serve in Johnson's government. Both say they'll cut taxes
  
  
• In fact, pledges on taxes and spending are emerging as the central issue, with most contenders setting out whether they favour lower rates
  
  
• Two serving cabinet ministers - Chancellor Nadhim Zahawi and Transport Secretary Grant Shapps - have joined the race, both of whom promise to lower taxes
  
  
• Former chancellor Rishi Sunak, who's been criticised for increasing taxes, and Attorney General Suella Braverman, who's called for a low-tax state, have also launched campaigns
  
  
• Allies of Foreign Secretary Liz Truss say she'll also throw her hat in the ring to replace the PM with a pledge to reverse Sunak's health tax levy, [url=https://www.mailplus.co.uk/edition/news/politics/200146/liz-truss-ill-spike-sunaks-tax-hike?contentLayout=5pm Front Page]according to the Mail on Sunday[/url]
  
  
• Ex-equalities minister Kemi Badenoch and Foreign Affairs Committee chairman Tom Tugendhat are also in the running - but Defence Secretary Ben Wallace, tipped as having the most party support, says he won't make a bid for the leadership.
  

Boris Johnson accused of trying to derail Rishi Sunak’s bid to be next PM

Senior Tories say the former chancellor is the main focus of the ousted leader’s anger as bitter infighting breaks out

Senior Tories accused Boris Johnson of trying to torpedo Rishi Sunak’s bid to succeed him as prime minister – and of refusing to leave No 10 with good grace – as the leadership race descended into bitter infighting.
As a quartet of cabinet ministers entered the contest on Saturday night, senior MPs said the battle risked inflicting even more damage on the party than the fall of Margaret Thatcher more than three decades ago.

One party grandee accused Johnson of installing unsuitable MPs to middle-ranking and junior government posts when he knew he was on his way out “to cause maximum problems for his successor” who would inevitably have to sack most of them on taking office.
“Those appointments were the most appalling thing I have seen in politics,” said the senior source. “It was obviously a move to sabotage his successor’s first weeks in office.”

Another senior figure in the government added that Johnson was so incensed at the way he had been ousted, having won such a huge mandate at the 2019 general election, that he was now intent on exacting revenge on those he saw as responsible, and on influencing events wherever possible from the outside.
“This is not an administration that is going to go quietly. There is a lot of anger about how this all happened,” said the source. “It is clear that much of it will now focus on Rishi. It is all very Trumpian.”

A former vice-chairman of the 1922 committee of Tory backbenchers, Sir Charles Walker, told the Observer that pleas for restraint were pointless because there was so much bad blood. “People like me can say until we are blue in the face that the Conservative party should not tear itself apart, but our pleas will fall on deaf ears.
“Clearly the prime minister remains deeply bruised by the chancellor’s resignation. Rishi’s camp will have to soak up a lot of anger over the days to come. That will apply to whoever takes over.”

Meanwhile, Johnson allies warned the party it would soon regret ditching him and accused the candidates vying to replace him of being incapable of repeating his successes. They say Sunak, in particular, faces questions of “loyalty and propriety” and accuse him of plotting his leadership bid for months, while publicly professing his loyalty.

On Saturday night , amid the succession turmoil, fresh allegations emerged that Johnson had lobbied for a job for a young woman who claims she was having a sexual relationship with him during his time as London mayor.
According to the Sunday Times, the appointment was blocked because Kit Malthouse, then a senior figure in City Hall and now a cabinet minister, suggested the pair had an inappropriately close relationship. Johnson is said to have admitted pushing her forward for a job when the woman, who remains anonymous, confronted him in 2017.
The claims follow reports last month that Johnson had tried to secure his wife, Carrie, a role as his chief of staff during his time as foreign secretary. The pair were having an affair at the time.

Boris Johnson is accused of trying to secure a senior Downing Street role for his wife Carrie while the pair were having an affair. Photograph: Leon Neal/Getty Images

The foreign secretary Liz Truss, transport secretary Grant Shapps and the new chancellor, Nadhim Zahawi, all entered the leadership contest on Saturday night, alongside Sunak, the attorney general Suella Braverman, ex-minister Kemi Badenoch and the chair of the foreign affairs select committee, Tom Tugendhat.

Last night former health secretary Sajid Javid and a predecessor, Jeremy Hunt, both declared for the leadership race with each promising to cancel Sunak’s planned rise in corporation tax, and cut the 25% rate to 15%.
Javid also pledged to scrap the national insurance rise brought in when he was health secretary to help pay for the NHS and social care. He said: “I’m not sure I would have done it if I had been chancellor, but I was focused on my job and I’m not trying to do other people’s jobs for them.”

Shapps said he would focus on the cost of living crisis, while Zahawi promised to lower taxes “for individuals, families and business”.
The chancellor also stressed his “culture war” credentials, saying he would “let children be children, protecting them from damaging and inappropriate nonsense being forced on them by radical activists”.

Truss is expected to pledge to reverse the government’s recent national insurance rise when she officially launches her campaign this week. Supporters of the trade minister Penny Mordaunt are urging her to declare, while the defence secretary Ben Wallace – one of the bookies’ early favourites – said on Saturday that he would not be throwing his hat into the ring.

The chair of the 1922 committee, Sir Graham Brady, will meet senior MP colleagues and members of the party’s board on Monday to decide how the contest will proceed. They are expected to agree a timetable that will see the number of candidates whittled down to two in a series of votes by MPs over the coming fortnight. Then there will be a programme of hustings for the final two, leading to a vote by party members, and the announcement of a new leader and prime minister in early September.

According to the latest Opinium poll for the Observer, Sunak is the favourite among people who voted Conservative at the last general election: 55.4% said he would be a good prime minister. Javid was in second place on 50.5%.

Those close to Johnson are struggling to decide which candidate they should back. “People are trying to work this out at the moment, the field is muddied by so many unrealistic candidates,” said one.
“There is a strong concern in what you might call the pro-Boris camp of certain candidates – some, perfectly reasonably, have never bought into what Boris was trying to do.
“Then there are those who have been running leadership campaigns from within the cabinet for some time, which is an act of the highest disloyalty. I think that raises a fundamental question of loyalty and, indeed, of propriety.”
Johnson loyalists will look at any potential campaign by the home secretary, Priti Patel, as well as Truss and Zahawi, before deciding who to back. Another Johnson supporter said “buyer’s remorse” was already beginning to grow among those who had helped to topple Johnson.

Leadership race front and centre in Sunday papers

• The Sunday Times reports how the Tories are "tearing themselves apart over tax" after a No 10 source hit out at leadership frontrunner Sunak over his stance on delaying tax cuts.
  
• The Observer delves into the rising tension between Boris Johnson and Sunak over his bid to succeed him, with the prime minister accused by senior MPs of trying to "torpedo" the former chancellor's campaign.
  
• The Sunday Telegraph focuses on calls from Sajid Javid and Jeremy Hunt for tax cuts after they both announced their leadership bids in the paper.
  
• The Mail on Sunday reports that Liz Truss is expected to add her name to the hat in the coming days with the promise of reversing Sunak's National Insurance hike.
  
• The Sunday Mirror goes in a slightly different direction, with an exclusive from Labour leader Sir Keir Starmer on his call for an immediate general election.
  

Meet the contenders...

Leadership contest off to a 'vicious' start as candidates take aim

Penny Mordaunt enters leadership race

Who is Penny Mordaunt?

A Monday morning recap of what's been happening so far:

• A total of 11 candidates are now in the running to become leader of the Conservative party: Liz Truss, Kemi Badenoch, Penny Mordaunt, Rehman Chishti, Sajid Javid, Jeremy Hunt, Grant Shapps, Nadhim Zahawi, Suella Braverman, Tom Tugendhat, and Rishi Sunak
  
  
• The 1922 Committee of backbench Tory MPs will meet on Monday to decide the timetable and rules of the leadership race
  
  
• Over the weekend, a number of candidates set out competing tax plans as a core element of their proposal, as well as restoring trust in the government
  
  
• Truss indicated that she would echo her rivals in planning to slash corporation tax, reverse the National Insurance hike and reform business rates
  
  
• Labour have reiterated their pledge to call a no confidence vote tomorrow (Tuesday, 12th July) if the prime minister doesn't leave No 10
  

Liz Truss is latest big name to join the leadership race

A scramble for support