Sir Keir Starmer cut a forlorn figure as he hung about yesterday on the station platform, waiting for the train which will carry him into exile in Kentish Town. It was difficult for the small party which had gathered to see him off – Kemi Badenoch, Sir Ed Davey, Nigel Farage, a few hundred other MPs whose names do not immediately spring to mind – to know what to say to the poor fellow, for frankly everything had already been said during the two years he has been taking Prime Minister’s Questions.