Parliamentary Labour Party

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In UK politics, the Parliamentary Labour Party (PLP) is the parliamentary party of the Labour Party in Parliament, i.e. Labour MPs as a collective body.[1] Commentators on the British Constitution sometimes draw a distinction between the Labour Party (which was created outside Parliament and later achieved office) and the Conservative and Liberal parties (which began as parliamentary factions). The term Parliamentary Labour Party refers to the party in Parliament, whereas the term Labour Party refers to the entire Labour Party, the parliamentary element of which is the PLP.

A similar body for the Conservative Party is the 1922 Committee.

An organisation for former members, the PLP in exile, was established after the 2010 general election.[2]


The PLP holds regular meetings behind closed doors to question the Leader and to discuss its concerns.

Labour MPs elect three of their number to Labour's National Executive Committee.[3]

Originally, the Leader of the Labour Party was elected by the PLP. Now, however, the party operates on a one-member, one vote system, where all members are awarded a single vote, as well as affiliated organizations (trade unions and socialist societies) and temporary registered supporters. The Alternative Vote is used to conduct the election. Labour MPs retain the power to trigger an extraordinary or "special" Labour Party Conference to choose a new leader if they lose confidence in their existing leader.[4]


The Chair of the PLP chairs meetings of the Parliamentary party. He or she is elected by Labour MPs at the start of each annual session of Parliament. By tradition, only elections at the start of each Parliament, following a general election, are competitive.

From 1921 to 1970, the Chair of the PLP was also the leader of the party as a whole (before 1921, leadership of the party was arguably split between the Chairman of the PLP, the General Secretary and the Party Chairman). When the leaders of the Labour Party joined coalition governments during the First and Second World Wars, an acting chair was appointed to lead the rump of the party in Opposition. When the Party was in government, a liaison committee was elected to facilitate communications between the cabinet and Labour backbenchers – the chair of this committee also chaired meetings of the PLP as a whole during these periods. In 1970, the positions of Leader of the Labour Party and Chair of the PLP were permanently split.

Other roles and groups[edit]

There is also a deputy chair.

Other groups have been established within the PLP, such as the Women's PLP and the LGBT+ PLP.


In Ireland, the Parliamentary Labour Party is also used as the title for the Labour section consisting of members of the Oireachtas and European Parliament.[5]

See also[edit]


  1. ^ "Parliamentary Labour Party Papers, 1968/69-1993/94 - British Online Archives From Microform Academic Publishers". British Online Archives. Retrieved 2016-09-15.
  2. ^ Roberts, Jane (2017). Losing Political Office. Palgrave Macmillan. ISBN 9783319397016.
  3. ^ "Labour's National Executive Committee". Labour Party. Retrieved 19 April 2017.
  4. ^ This would require 20% of the PLP to nominate a named member of the PLP prior to the annual party conference."Archived copy" (PDF). Archived from the original (PDF) on 2008-02-27. Retrieved 2008-02-06.CS1 maint: archived copy as title (link)
  5. ^ See