Deputy Leader of the Labour Party (UK) of the Party until a new leader is elected. If a vacancy in the leadership occurs while the Labour Party is in government, then the Cabinet, in consultation with the National Executive Committee of the Labour Party, chooses a new leader, who serves until a new leader is elected. To date, the only Deputy Leaders who have gone on to become the elected leader of the Labour Party are Clement Attlee and Michael Foot. Margaret Beckett briefly served as Labour leader following the unexpected death of John Smith in 1994. Harriet Harman was leader after Gordon Brown resigned in 2010
Deputy Leader of the Labour Party (UK) previous Labour deputy leader, John Prescott, held this post from 1997 to 2007. However, the deputy leader is essentially a party official and there is no constitutional link between the two roles. The former Labour British Prime Minister, Gordon Brown, announced on his formal election as Labour leader that the newly elected deputy leader, Harriet Harman, would instead become Party Chair. Brown subsequently appointed her Leader of the House of Commons in his first cabinet. In the event of a vacancy in the office of leader when the Labour Party is in opposition, the deputy leader automatically becomes temporary leader