Constituency Labour Party

A constituency Labour Party (CLP) is an organisation of members of the British Labour Party who live in a particular UK parliamentary constituency in England, Scotland and Wales. The Labour Party in Northern Ireland has, since February 2009, been organised as a single constituency.
For much of the Labour Party's history, especially during the 1980s, CLPs were perceived as the more left wing faction in the Labour Party. The unions were said to be a more moderate or pragmatic force.