Influential Britons view Boris Johnson far more positively than the leaders of the three main political parties, according to a new YouGov poll.
The findings come from a monthly survey of UK opinion formers, drawn from politics, business, media, academia, non-governmental organisations and the public sector.
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The 52-year-old singer was driven to the station in a dark-coloured van with heavily-tinted rear windows.
The Duke and Duchess of Sussex are heading to the North African country on an official three-day trip.
The attack took place on Monday.