London Mayor Boris Johnson believes London would vote to remain part of EU ` ` one way or another '' Prime Minister David Cameron said he plans to hold a national referendum on membership . Johnson also condemned attempts in Europe to build financial trading hubs away from London . Johnson also condemned attempts in Europe to build financial trading centres away from London . Speaking on World Economic Forum in Davos : ` ` It is this great cyclotron of egos is n't it ? ''
London Mayor Boris Johnson believes London would vote to remain part of EU ` ` one way or another '' Prime Minister David Cameron said he plans to hold a national referendum on membership . Johnson also condemned attempts in Europe to build financial trading centres away from London . Speaking on World Economic Forum in Davos : ` ` It is this great cyclotron of egos is n't it ? ''