Deselection of Labour MPs

Deselection in the UK Labour Party is the process by which support for an MP is withdrawn by their local party meaning that the MP is unable to stand in a forthcoming general election with the support of the party. == Rules governing deselection == Labour Party rules specify that MPs will face a "trigger ballot" procedure where each branch of the Constituency Labour Party (CLP) and each affiliate (trade union and socialist society) branch will have a simple majority vote on whether they wish their sitting MP to automatically stand again in the next general election, or whether they wish to have a full selection process.

Source: Wikipedia — Deselection of Labour MPs (CC BY-SA 4.0)