From September 1st 2015 to June 23rd 2016 the polls were clear that Britain would vote to remain in the EU.
According to the Financial Times, there were only two weeks over that period where the Leave campaign were ahead.
Yet, when the results came through, British voters had opted to leave the EU with 51.9% voting out.
How did the leave campaign strategy overcome the clear gap held for the year leading up to the vote?
A clear narrative and a range of big promises?
Well, yes. But also by selling those narratives and promises through a slick targeted marketing campaign powered by social media and big data.