Labour MP Tom Watson has been at the forefront of the parliamentary investigation into the phone-hacking scandal at News International.
He has presented an image of dogged, understated determination and been content to let the facts speak for themselves.
It was an approach which gained him widespread admiration. But it all became too much when James Murdoch was recalled for interrogation – and Watson could not resist a bit of show-boating.
Referring to the News Corps chairman as a ‘mafia boss’ may have been personally satisfying – but this crass bid for a headline was also indulgent, unprofessional and entirely counter-productive as far as the investigation is concerned. Just when it was all going so well...