More than 100,000 WhatsApp messages sent and received by Covid-era health secretary Matt Hancock were handed over to The Telegraph newspaper by journalist Isabel Oakeshott.
Hancock provided Oakeshott the messages after commissioning her to ghost-write his account of his time in office, The Pandemic Diaries.
He has accused Oakeshott of a massive betrayal and breach of trust, but Oakeshott has defended passing on the messages, stating it was in the "overwhelming national interest" for the messages to be made public.