You beat me to it.
The BBC's unreasonable action that brought this on?
In the emails, Harri told Will Walden, the BBC's Westminster news editor – whom Johnson has since chosen as Harri's replacement as head of communications at City Hall – that the BBC faced a "huge public fight" if an interview about Johnson with his unauthorised biographer, Sonia Purnell, went ahead.
Utter horseshit about Purnell being able to "pontificate unchallenged". Because when you interview a biographer you always have the subject of the biography there too. Bollocks.
They should have had Sonia Purnell on when Johnson dropped out of the interview with Tim Donovan.
The biography is good, btw.