In late 2023, Labour Together was ascendant. Under Keir Starmer, the group's anointed torchbearer, Labour had a double-digit lead in the polls. Morgan McSweeney, the man who built Labour Together, was preparing Starmer for government with great hopes of cleaning up politics. Now McSweeney is out of a job, Labour Together is mired in controversy and Starmer faces urgent questions about what he knew and when.