The EU referendum could be held as early as June so clarity is needed about what will happen in the event of a vote to leave. In this post Alan Renwick explains Article 50 of the Lisbon Treaty which sets out the procedure for leaving the EU. Under it a second in/out referendum of the type floated by Boris Johnson among others is not possible. Anybody suggesting that voters can vote to ‘leave’ safe in the knowledge that they can later change their minds is either playing with fire or manipulating voters disingenuously. 2016 looks likely to be the year in which voters get to decide whether the UK will stay in the European Union.  If David Cameron secures a deal with other EU leaders …