Guido has been tracking Arnie Graf, the community campaigning guru personally hired by Ed Miliband, since it emerged that he had no legal right to be working in the country. Readers will remember that Labour claimed he was only being paid expenses – though that would be very unlikely to have impressed the Home Office. We had him under surveillance in June when he was seen coming out of Labour HQ. His illegal immigrant status even made the frontpage of The Sun…

Arnie denies he is over here working for Ed – he says he is on a tourist visit – stopping over en route to Israel. Just another lost elderly American tourst who doesn’t know there is a direct Chicago – Tel Aviv flight…

Oddly for a humble tourist he was briefing Newsnight’s Allegra Stratton over coffee when Guido caught up with him in the Blue Boar Bar in Westminster. Prior to Allegra he had, Guido understands, spoken to The Telegraph’s Dan Hodges. Some tourist.

So if as Arnie claims, Labour have fired him, why exactly was he briefing British political journalists?