Alexander Boris de Pfeffel Johnson (born 19 June 1964), better known as Boris Johnson, is a British politician, popular historian, and journalist. He has been the Member of Parliament (MP) for Uxbridge and South Ruislip since 2015. He had previously been the MP for Henley from 2001 to 2008. He was Mayor of London from 2008 to 2016, and from 2016 to 2018 he served as Secretary of State for Foreign and Commonwealth Affairs. A member of the Conservative Party, Johnson identifies as a one-nation conservative and has been associated with both economically and socially liberal policies.