You select a candidate in a keenly contested election.
You then receive complaints about how the contest was run.
So you suspend the candidate and, er…, don’t rush through an investigation or recount the votes to find a new winner or put the runner-up in post but instead your national committee hands the candidature to someone else, without members getting a say in the matter.
Oh, and the original winner decides to stand anyway, but as an independent.
Welcome to the tale of Labour’s Mayoral selection in Tower Hamlets, as told over on Dave Hill’s blog.