Suella Braverman has accused UK Prime Minister Rishi Sunak of "betrayal" over a promise to stop small boat crossings in a scathing letter after being sacked as home secretary.
In a broadside aimed at Mr Sunak, she accused him of having "manifestly and repeatedly failed to deliver" on key policies, and said his "distinctive style of government means you are incapable of doing so".
She said Mr Sunak had not lived up to his promise to do "whatever it takes" to stop small boat crossings by failing to override human rights concerns about the Rwanda plan.
Ms Braverman, one of the leading figures on the right of the Tory party, urged Mr Sunak to "change course urgently", telling him he has led the Conservatives to "record election defeats" and that his "resets have failed and we are running out of time".
Rishi Sunak has assembled his new-look Cabinet featuring David Cameron for their first meeting after the sacking of Suella Braverman in a dramatic reshuffle that triggered anger on the right of the UK Conservative Party.
In a major gamble to revive his electoral fortunes, the British Prime Minister gave the former leader a peerage to bring him back from the political wilderness and promoted loyalists to the top team.
Mr Cameron is back around the Cabinet table today for the first time since he stood down as prime minister and quit as an MP after losing the Brexit referendum in 2016.
He admitted yesterday such a return is "not usual" but said he wants to support Mr Sunak through a "difficult job at a hard time".
Mr Cameron arrived at Downing Street at 9.10am, accompanied by minister of state for development and Africa Andrew Mitchell.
The former prime minister laughed after a photographer asked him if he missed being "shouted at in the street".
Inside, Mr Sunak said his new-look Cabinet would make the "big, bold decisions that will drive change".
Opening the first meeting of his new top team, the Mr Cameron said: "Looking around this table, I know that we have an energetic and enthusiastic team that is going to deliver for the country.
"So, let's get to work.
"A warm welcome to those for whom it's their first Cabinet and also a welcome to those for whom it may not be their first time."
The reshuffle, which was launched after Mr Sunak sacked Mrs Braverman as home secretary, risked inflaming the rift in the Conservative Party.
Former minister Dame Andrea Jenkyns submitted a furious letter of no confidence in Mr Sunak to the Tory backbench 1922 Committee as a result of the decision.
Deputy Tory chairman Lee Anderson was among hardline MPs at a Commons meeting where concerns were shared about Mrs Braverman's ousting after she accused the police of bias.
Tensions could be further ramped up tomorrow when the Supreme Court hands down its judgment on the Rwanda asylum policy central to Mr Sunak's promise to "stop the boats" crossing the Channel.
Mrs Braverman, who warned she will have "more to say in due course", could add to pressure by championing leaving the European Court of Human Rights if the Government loses the appeal.
In a foreign policy speech to the Lord Mayor's Banquet in London's Guildhall, Mr Sunak vowed to stand up for tolerance and free speech as "conflicts overseas create division at home".
James Cleverly was appointed Home Secretary as he was moved from the Foreign Office to make way for Mr Cameron, while promotions included Victoria Atkins to Health Secretary and Laura Trott to Treasury Chief Secretary.
In a conciliatory move to the Tory right, GB News presenter and former work and pensions secretary Esther McVey was brought back into government as a minister without portfolio.
In another sign Mr Sunak is looking ahead to the election, Richard Holden replaced Greg Hands as Conservative Party chairman following a string of by-election losses and a mauling in council contests during his nine months in charge.
Mr Sunak continued reshuffling the junior ranks on Monday evening and is expected to make a few more alterations today.
