Conservative minister Baroness Warsi backed Michael Gove and appeared to take a swipe at the number of Old Etonions in Government.
Baroness Warsi has written to the Prime Minister explaining why she didn't declare a business interest. Here's their correspondence in full.
Baroness Warsi has asked the Lords Commissioner for Standards to investigate allegations she made improper expense claims.
Baroness Warsi has said that she backed Michael Gove's complaints about the number of Old Etonians in David Cameron's inner circle because she believes the Education Secretary wants a "world class state system".
"What Michael wants to create is a first class, world class state system which means that in future years you will have more pupils from state schools, people like me, around the cabinet table, and in that I fully support Michael Gove," the faith and communities minister said.
But Shadow Cabinet Office minister Jon Ashworth said: "This is open warfare in the Conservative Party.
"Sayeeda Warsi is making it clear that David Cameron is out of touch with a blatant attack on his style of Government.
"Once again we are seeing the Tories fighting like ferrets in a sack rather than taking action to tackle the cost-of-living crisis facing hard-working people," he added.
Another senior Conservative has complained about the concentration of the privately-educated at the heart of British politics.
Baroness Warsi said Michael Gove had been "making an incredibly serious point" when he hit out at the "ridiculous" number of Old Etonians in David Cameron's inner circle.
The Education Secretary's comments fuelled Labour claims the Government was "out of touch" and were reported by The Spectator to have earned him an angry reprimand from the Prime Minister,
Asked if she agreed with him, Baroness Warsi told ITV's The Agenda: "Michael was making an incredibly serious point that it can't be right that the 7% of kids who go to independent school end up at the top tables, not just of politics, but banking, and law, and every other profession."
Baroness Warsi tells Tom Bradby on tonight's edition of The Agenda that she wants to see the Tories return to the "very core conservative principles" of allowing people to keep more of what they earn.
The Conservative peer said: "That means first of all focusing on the poorest first and making sure that they get the first bite of the cherry, but also looking at other people and looking at how we can bring the tax burden down. But we've got to balance that against the public finances."
The Agenda with Tom Bradby is on ITV tonight at 10.35pm.
Other guests on the show are TV historian Dan Snow, comedian Katy Brand, and columnist Jonathan Freedland.
Baroness Warsi, the Minister for Faith and Communities, will join Tom Bradby on tonight's edition of The Agenda.
Also appearing on the panel will be the historian and broadcaster, Dan Snow, the columnist, Jonathan Freedland, and the comedian Katy Brand.
The Agenda with Tom Bradby is on ITV at 10.35pm tonight
The senior foreign minister Baroness Warsi has said she is concerned that political correctness could lead to statistics on the sexual abuse of children being distorted.
She said: "If the victim takes us to a perpetrator who is white, black, brown, of whatever religion background, then we must investigate that fully".
Tory Party chairman Baroness Warsi has issued an appeal to David Cameron to keep her in her post when he carries out his forthcoming Cabinet reshuffle.
Speaking to The Daily Telegraph, the first female Muslim Cabinet minister urged Mr Cameron let her carry on so that she could help the party attract a new generation of women, working class and ethnic minority voters.
– Baroness Warsi
If I genuinely had a choice, I would like to stay doing what I'm doing.
If you look at the demographics, at where we need to be at the next election, we need more people in the north voting for us, more of what they call here 'blue collar' workers and I call the white working class.
We need more people from urban areas voting for us, more people who are not white and more women.
I play that back and think, 'I'm a woman, I'm not white, I'm from an urban area, I'm from the North, I'm working class - I kind of fit the bill. All the groups that we're aiming for are groups that I'm familiar with."
The report on Baroness Warsi finds she did breach the ministerial code but it "was a minor one" and "did not use her office for personal financial gain".
The Prime Minister accepts it was a minor breach of the ministerial code and calls Baroness Warsi "a great asset".
Responding to the report, Baroness Warsi said: "The allegations on this matter were untrue and unsubstantiated and I am pleased that Sir Alex Allan’s report has confirmed that."
Baroness Warsi still faces investigation by the Lords Commissioner on Standards on her expenses, so she's not totally in the clear yet.
In a heated Prime Minister's Questions, Ed Miliband asked why David Cameron had called in Sir Alex to investigate Tory chairman Baroness Warsi but not Jeremy Hunt.
The Prime Minister said: "There is a very significant difference between the two cases.
"In the case of Baroness Warsi there hasn't been a judge-led inquiry with witnesses, taking evidence under oath, to get to all of the factual evidence behind her case.
"That is why I asked Sir Alex Allan to look at that case and establish some of the facts of that case."
But Mr Miliband said it was not the job of the Leveson Inquiry to investigate alleged breaches of the ministerial code.