Speaking on the BBC's Marr programme on Sunday Mr Cameron said the allegations needed to be "properly looked at, properly investigated".
He is best-known for presenting BBC One's Andrew Marr Show and Radio 4's Start The Week.
For this reason, he told BBC One's Andrew Marr Show, the UK's triple-A rating was "hugely important".
The Labour leader told the BBC's Andrew Marr Show promising a future referendum on the UK's relationship with the EU would be "an incredible gamble".
"We are not picking a fight with anybody, " she told the BBC's Andrew Marr show.
Entwistle was not pushed out of his position, Patten told BBC's Andrew Marr show on Sunday.
"That is not something that was in Lord Hutton's report, " she told the BBC's Andrew Marr show.
"In public life, that is very evident, including in broadcasting, " she told the BBC's Andrew Marr Show.
He also told BBC One's Andrew Marr Show he would "not flinch" amid growing speculation about his future.
BBC: Lib Dem conference: Clegg promises to push for wealth tax
Mr Cable told BBC One's Andrew Marr Show the value of this exercise was to "look at the alternatives".
Ms Cooper told BBC One's Andrew Marr Show the committee had produced a "very serious report with very serious condemnation".
BBC: Police right to revisit MacShane case, says Yvette Cooper
Health Secretary Andrew Lansley told BBC One's Andrew Marr Show that "buying standards" would improve, prompting "better nutrition for patients".
And Labour leader Ed Miliband told the BBC's Andrew Marr programme that the figures were a "shocking set of findings".
Mr Livingstone told BBC One's Andrew Marr show his tax affairs were in order as he employed a number of people.
"It is a decision for the Scottish Conservative Party what its future should be, " he told BBC One's Andrew Marr programme.
He told BBC1's Andrew Marr show that other countries had more rigorous examination regimes and schools in the UK needed to catch up.
Senior Tory MP David Davis told the BBC's Andrew Marr Show said that "it seems like an assault on the Big Society idea".
Shadow foreign secretary Douglas Alexander, speaking on BBC One's Andrew Marr Show, said the Church also had a role to play in calling for change.
BBC: Ed Miliband warns of St Paul's protest 'danger signals'
"Mr Cameron is making a grave mistake by saying he is going to force it on to the statute book, " he told the BBC's Andrew Marr show.
BBC: Simon Hughes: Andrew Lansley should go after NHS change
Mr Osborne told BBC One's Andrew Marr Show that the "generous" flat-tier pension would be "a huge boost for people who want to save for their retirement".
Mr Cable told the BBC's Andrew Marr show that it was designed to "pre-empt a flood" of new arrivals in the period before permanent arrangements came into force.
Lord Patten, told the BBC's Andrew Marr programme, he had to show licence fee-payers "that the BBC has a grip, that we get ourselves back on the road".
But Mrs May told the BBC's Andrew Marr show that was not possible under EU law, although she was hoping to limit the impact on the UK economy.
BBC: UK will not extend Romania and Bulgaria migration curbs
"It would be great on Monday if we can get some kind of agreement, even at this late stage, between the parties, " he told the BBC's Andrew Marr show.
He told the BBC's Andrew Marr Show he hoped the result would reaffirm the principle of self-determination and send a message to both the international community and to Argentines.
He has put down a motion in the House of Commons calling for that delay and he told the BBC's Andrew Marr programme he hoped he would win that vote.
Speaking on the BBC's Andrew Marr show, Mr Gove said the reforms were "absolutely right" but that he was prepared to look at "an adjustment here or there" to meet concerns.
Asked about Mr Lansley's position, Mr Hughes told BBC1's Andrew Marr show it might be for the best if he changed roles - but only after the reforms were in place.
BBC: Simon Hughes: Andrew Lansley should go after NHS change
He told BBC One's Andrew Marr Show there was a need to "look again in the round at the plurality rules to make sure there is proper plurality in the British press".
BBC: Hacking: Miliband and Clegg seek media ownership limits
"The idea that you would simply march into the lobby... to obtain this piece of legislation is one that may be very hard to swallow, " he told the BBC's Andrew Marr show.
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