Just read about the former aide's book on Amazon:
"Sometime in the future…Politics clashes with the personal during a tumultuous week at the Labour Party’s Annual Conference in Manchester. Abi Jeffers fancies her chances of becoming Labour's first woman Leader, but hot favourite Shadow Chancellor, Derek Woods stands in her way. His Special Adviser, Jack Marsden meanwhile is the unwitting victim of ex-partner Sandra Clinton's thirst for vengeance. As the battle for power unfolds in the midst of a personal vendetta, rival SpAds spin and plot under the watchful eye of tabloid journalist Ray McManus. Events soon spiral out of control, with a looming expenses scandal, sex, betrayal and revenge triggering tragic consequences. This explosive political thriller tells the inside story of a shocking week at a Labour Party Conference. After all, a week is a long time in politics... "
Fact or fiction?
This aide took Angela Rayner to an employment tribunal in 2018, citing disability discrimination when he was sacked. I don't suppose he bears a grudge or anything. 