Nigel Farage, the British politician without whom there would never have been a Brexit vote, dramatically quit on Monday morning as leader of the anti-E.U. UK Independence Party, aka UKIP. David Cameron made his ill-advised pledge to hold a referendum on British E.U. membership in January 2013, when Farage’s UKIP were enjoying a spike in polling numbers and making headway in local elections. Seeing a way to blunt the appeal of UKIP to traditional Conservative voters, Cameron announced his in/out referendum, never imagining for a moment the UK would vote to Leave.