The two most surprising political phenomena of this year have been the rise of Donald Trump and the success of the Leave Europe camp in Britain's referendum on Brexit. Few pundits saw either coming (and full disclosure, I include myself here, particularly on Trump) - but we should have and now would be a good chance to make up for past oversight by looking at how the two are linked. Next week, polls suggest, Britain may pull out of the European Union. Opinion polls currently have the 23 June referendum too close to call but the Brexit camp (those in...