There was an interesting insight into just how brutal politics can be when Adam Smith told the Leveson Inquiry about his resignation after James Murdoch gave his evidence.
Mr Smith says there was a very pressured mood in Jeremy Hunt's office and he told Mr Hunt he would resign if the pressure became too great. Mr Hunt said it wouldn't come to that, and it was agreed by the department that he was just doing the job.
But the next morning, everything had changed and he was told "everyone here thinks you need to go".
So he didn't manage to hang on, Mr Hunt still has. Will that change on Thursday when the Culture Secretary gives his evidence to the Inquiry?