He has now Tweeted:

Earlier I repeated a joke that was in poor taste, which I now regret. I apologise wholeheartedly for any distress or embarrassment caused.

That will win votes won’t it?  Insult the popular and much loved sensation of the moment.  His skills with video satire and political forecasting have been remarked on before.  He is best mates with Tom Watson, the Minister for Digital Engagement and Mudslinging.  It was Tom who encouraged Labour MPs to twitter.  When comes to twattishness, none can surpass Sion.