 Sir Anthony Francis Seldon is known in part for his biography of a British politician who identifies as what?
a One-Nation Conservative
Title: David Cameron
Passage: David William Donald Cameron ( ; born 9 October 1966) is a British politician who was Prime Minister of the United Kingdom from 2010 to 2016 and Leader of the Conservative Party from 2005 to 2016.  He was Member of Parliament (MP) for Witney from 2001 to 2016.  Cameron identifies as a One-Nation Conservative, and has been associated with both economically liberal and socially liberal policies.
Title: Henry Ughtred
Passage: Sir Henry Ughtred (1533 – 1598 ), also known as Oughtred, was an English Member of Parliament, a shipowner and shipbuilder during the reign of Elizabeth I.  One of his ships, the "Leicester" sailed with Sir Francis Drake against the Spanish Armada.  A wealthy landowner, Sir Henry is known to have played an active role in the Plantations of Ireland and was knighted by the Lord Deputy of Ireland in 1593.  He was the son of Sir Anthony Ughtred and Elizabeth Seymour, sister to Jane, the third wife of Henry VIII.  After 1557 he married Elizabeth Paulet, the daughter of John Paulet, 2nd Marquess of Winchester and widow of Sir William Courtenay.
Title: Anthony Seldon
Passage: Sir Anthony Francis Seldon, {'1': ", '2': ", '3': ", '4': "} (born 2 August 1953), is Vice-Chancellor of the University of Buckingham, a contemporary historian, commentator and political author, known in part for his biographies of Margaret Thatcher, John Major, Tony Blair, Gordon Brown and David Cameron.  He was the 13th Master (headmaster) of Wellington College, one of Britain's co-educational independent boarding schools.  In 2009, he set up The Wellington Academy, the first state school to carry the name of its founding independent school.
Anthony Seldon David Cameron