John McDonnell John McDonnell John Martin McDonnell (born 8 September 1951) is a British Labour Party politician who was appointed the Shadow Chancellor of the Exchequer in September 2015. He has been the Member of Parliament (MP) for Hayes and Harlington since the 1997 general election. He has served as chair of the Socialist Campaign Group in Parliament and the Labour Representation Committee, and was the chair of the Public Services Not Private Profit Group. He is also parliamentary convenor of the Trade Union Co-ordinating Group of eight left-wing trade unions representing over half a million workers. McDonnell attempted to stand for
Chancellor of the Exchequer Chancellor of the Exchequer is now always Second Lord of the Treasury as one of the Lords Commissioners for executing the office of Lord High Treasurer. In the 18th and early 19th centuries, it was common for the prime minister also to serve as Chancellor of the Exchequer if he sat in the Commons; the last chancellor who was simultaneously prime minister and Chancellor of the Exchequer was Stanley Baldwin in 1923. Formerly, in cases when the chancellorship was vacant, the Lord Chief Justice of the King's Bench would act as Chancellor "pro tempore". The last Lord Chief Justice to