He said a separate opinion poll, also carried out by TfL, found that of 815 people questioned, 54 per cent backed the tram, with 18per cent against. Mr Livingstone said the latest consultation was "skewed" - far more likely to attract people opposed to the scheme. He said: "The decision to proceed is not really a referendum. At the end of the day, you have to take a decision that is in the interests of transport in west London."