Lawrence Martin,
Please, please tell me that you fully understand that no one is particularly interested in defending Jeff Sessions, that's not the point. The reason why people are fighting to keep him in office is because he at least had the integrity to recuse himself from the investigation into Russian interference and potential collusion with the Trump Campaign/Administration.  People fear that if Jeff Sessions is fired, Trump will replace him with someone who will meddle in the investigation and seek to obstruct it.