Minister dismisses claims he attempted to pin the blame for "shocking" failures in his flagship welfare reform on his senior official.
The BBC's head of HR, Lucy Adams, has admitted making a mistake in her evidence to a committee of MPs investigating excessive payoffs.
A spat has broken out between ex-BBC chief Mark Thompson and the Trust over large payoffs to departing staff.
Royal palaces "cost an absolute fortune" to maintain so it is not surprising the Queen's household has spent as much as it has done, a royal expert told Daybreak.
Robert Jobson defended Her Majesty for not doing more to reduce costs as palaces were already crumbling due to lack of upkeep.
"Basically, these buildings cost an absolute fortune to maintain, [Buckingham] palace in particular is crumbling in certain areas, has not been rewired since the 50s, certain rooms are not even decorated. This is a national monument in my opinion."
He continued: "It could possibly be opened to the public but the truth is that there has been a cut in real terms and so they had to spend the money where they could."
Buckingham Palace could be used to make more money for repairs Margaret Hodge, Public Accounts Committee chair has said.
Hodge also spoke of repairs needed at the royal residence, such as the boiler which has served the palace almost as long as the Queen and should be replaced due to the increasing costs of running it according the sixty-year-old appliance.
The royal household was charged by the PAC in 2009 to generate more income to supplement the funding it receives from Government. This has been done successfully. In 2012-13 the Household generated £11.6 million in comparison with £6.7 million in 2007-8. Work on income generation continues.
– Buckingham Palace spokesperson
A significant financial priority for the royal household is to reduce the backlog in essential maintenance across the occupied royal palaces. Recent examples of work include the renewal of a lead roof over the royal library at Windsor and the removal of asbestos from the basement of Buckingham Palace. The need for property maintenance is continually assessed.
Margaret Hodge, the PAC's chairman, criticised the Treasury for failing to be more actively involved in reviewing the household's financial planning and management, including in the plans to maintain historical buildings.
A Treasury spokesman said: "The new arrangements established by the Sovereign Grant Act have made the royal finances more transparent than ever while providing the long term stability necessary for good planning.
The PAC's report has failed to properly account for these changes."
The royal household's staffing levels have remained largely static at around 430 people, during the past seven years, to allow it to maintain the Queen's programme.
However this contrasted with the public sector which had seen employee numbers cut during the same period, and yet the sector was still expected to increase efficiency with fewer workers.
The Queen's royal household could do more to reduce its costs and increase income, and must get a firmer grip on a huge backlog of property repairs, a committee of MPs has said.
The household also needs to plan and manage its budget better for the long term, a report by the Public Accounts Committee (PAC) recommended.
The report produced by the PAC looked at the Sovereign Grant, the financial system funding the monarchy, and last October its MPs questioned Sir Alan Reid, Keeper of the Privy Purse, about the financial affairs of the household.
HM Revenue and Customs has defended its recorded in the wake of a parliamentary report that has accused it of holding back on using sanctions against multinational companies, while pursuing small businesses and individuals.
– HMRC spokesman
HMRC seeks to collect the tax that is due from all taxpayers, so that everyone pays their fair share in accordance with the tax laws passed by Parliament.
We have secured more than £50 billion of additional tax from our compliance work since 2010, including £23 billion from large businesses.
We have carried out 2,345 prosecutions for tax evasion in the last three years, including of high-profile accountants and lawyers, have halved the number of disclosed tax avoidance schemes and have protected more than £2.4 billion from marketed tax avoidance schemes this year alone.
Margaret Hodge, the Chair of the Public Accounts Committee, said there is a "lot of evidence" that the Government is not pursuing tax avoidance as expected.
The "tax gap" between the amount owed to the Exchequer and the amount actually collected grew by £1 billion to £35 billion in 2011/12, according to a new parliamentary report that accuses HM Revenue and Customs of being soft on big multinational firms.
– Margaret Hodge, Chair of the Commons Public Accounts Committee
HMRC holds back from using the full range of sanctions at its disposal. It pursues tax owed by the smaller businesses but seems to lose its nerve when it comes to mounting prosecutions against multinational corporations.
It predicted that it would collect £3.12 billion unpaid tax from UK holders of Swiss bank accounts... but in 2013-14 it has so far secured just £440 million.
We were astonished that HMRC could not give any reasons for such a shortfall.
HM Revenue and Customs seems to "lose its nerve" when faced with the prospect of taking legal action against global giants, while pursuing small businesses and individuals, according to a new parliamentary report.
HMRC has fallen short on the unpaid tax it hoped to extract from Swiss bank accounts - collecting just £440 million so far this financial year, rather than the £3.12 billion forecast after a bilateral agreement - said the House of Commons Public Accounts Committee.
Changes in "controlled foreign company" rules and the failure to close a loophole relating to Eurobonds have made it "easier for the companies to avoid tax while ordinary people continue to pay their share," said the committee's chairwoman Margaret Hodge.