It is worth savouring Chris Huhne’s lecture to the Tories in the Guardian this morning. “Whatever happened to loyalty?” he hectors, with a straight face telling us how the LibDems are saintly but the Tories are experts in betrayal. He would know, having betrayed his own wife, his children, his party and knifed rival after rival down the years. Huhne’s column is becoming increasingly unhinged…