Sadiq Khan is languishing on a rating of minus 24 in populous suburban boroughs, according to a poll which comes as he prepares to roll out Ulez across Greater London.
The YouGov survey of 1,000 Londoners found that across the capital as a whole, the Labour Mayor is viewed unfavourably by 52 per cent and favourably by 40 per cent — giving a net favourability rating of minus 12 overall.