He also revealed that his diary, kept during nine years as Mr Blair's right-hand man, consisted of a total of more than six million words. Extracts of the diary will only be published once Mr Blair has left office. The interview also includes fresh revelations that Mr Campbell prepared for the Hutton Inquiry by reminding himself of an earlier nervous breakdown. But it is his admission that he may seek to become a Labour MP that will trigger most interest - and, perhaps, a race to find him a safe seat before the next general election.