An investigation based on the largest leak of documents in British political history. The Labour Files examines thousands of internal documents, emails and social media messages to reveal how senior officials in one of the two parties of government in the UK ran a coup by stealth against the elected leader of the party. The program will show how officials set about silencing, excluding and expelling its own members in a ruthless campaign to destroy the chances of Jeremy Corbyn becoming Britain’s prime minister. Candidates for key political roles were blocked and constituency groups suspended as the party’s central office sought to control the elected leadership.