Historical rankings of Prime Ministers of the United Kingdom from his second term only. In 2013, a group of academic staff and students at Royal Holloway, University of London, conducted a postal survey of British Members of Parliament, asking them to evaluate the success of post-war British prime ministers. Some 158 MPs replied to the survey, a response rate of 24%. The respondents included 69 Conservatives, 67 Labour MPs, 14 Liberal Democrats and 8 MPs from other parties. The survey used the same question employed in the 2004 and 2010 University of Leeds studies: MPs were asked how successful or unsuccessful they considered each Prime Minister to have been
Parliamentary Private Secretary to the Prime Minister Many Prime Ministers have used this tactic during their premierships; former Prime Minister, David Cameron, only employed one Parliamentary Private Secretary at a time during his tenure in office, but he appointed John Henry Hayes as a minister without portfolio with responsibility for the Parliamentary Conservative Party, a job typically reserved for the Parliamentary Private Secretary. The final instalment of Michael Dobbs's and the BBC's "House of Cards" trilogy, "The Final Cut", includes a character, Claire Carlsen, who serves as Prime Minister Francis Urquhart's Parliamentary Private Secretary, ultimately betraying him by attempting to leak documents about his service in the