David William Donald Cameron (born 9 October 1966) is a British politician who was the Prime Minister of the United Kingdom from 2010 to 2016. He served as the Leader of the Conservative Party from 2005 to 2016 and was Member of Parliament 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.