GETTY The Prime Minister's aides are reportedly censoring Eurosceptic Tories

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David Cameron is facing a revolt over claims that panicked officials are suppressing ministers’ speeches in Parliament to tone down their Eurosceptic comments. Pro-European ministers are also reportedly being encouraged to make their cases for why Britain should vote to stick with Brussels.

Furious right-wing Conservatives have condemned the Prime Minister for what they believe is a coordinated attempt to rig the debate. Mr Cameron has repeatedly claimed he does not rule out recommending Britain vote to leave the EU if he cannot renegotiate a deal to change Britain’s EU membership. But the latest revelation will fuel suspicions that Mr Cameron and George Osborne have already made up their minds to campaign to keep Britain in Europe. The Prime Minister conceded last week he would have to suspend the long-standing convention of "collective government responsibility" to allow ministers to campaign on both sides of the referendum debate.

Mr Cameron announced that he would allow ministers to campaign in favour of leaving the EU once he had finished his negotiations in Brussels following talks with Cabinet Eurosceptics Chris Grayling and Theresa Villers. It was initially seen as a major victory for the "out" campaign but there are growing fears among sceptics that they will not be able to campaign for a Brexit. Ministers have been banned from campaigning to leave the EU or making any statements that could be seen to undermine the Prime Minister’s efforts until his renegotiation is completed.

It would be tragic if mishandling of Cabinet ministers who want to stay in the EU was to create a sense of resentment Senior Minister

One senior minister told the Sunday Telegraph: ”The effect of the intervention from Chris Grayling and Theresa Villiers and the Prime Minister's statement has been to really lift the mood of the party. "It would be tragic if mishandling of Cabinet ministers who want to stay in the EU was to undermine that and create a sense of resentment." Even supporters of EU membership warned the censorship tactics could backfire. Cabinet sources said officials in Number 10 and the Cabinet Office, which serves as the Government's central headquarters, had demanded the final say over statements and answers given to MPs in the Commons.

GETTY The Prime Minister is facing a Cabinet revolt over the censorship

On one recent occasion, Eurosceptic phrases were deleted from a draft of an answer due to be read out in Parliament by the Prime Minister’s officials, the paper claims. According to one Cabinet minister, it was sent back with "a more positive tone about Europe”. They said: ”The Cabinet Office and Number 10 are putting pressure on ministers not to sound Eurosceptic. "The danger is the public will see the government machine as promoting the status quo. We need to be careful."

GETTY There are suspicions Cameron and George Osborne have already decided to campaign to stay in the EU