Despite their far-reaching consequences, the horizons in elections can seem narrow, confined to the five-odd weeks of the campaign, strewn with invocations of the recent past. Zoom out, though, and one thing that comes into focus is that the anti-austerity movement in the UK – the chief engine of the rise of Corbynism – is the last in Europe to reach its major electoral showdown. It does so in unique circumstances, forced to grapple with inimical constitutional questions that warp its electoral calculus, and later than its sister movements in other countries, which, though they found more immediately amenable political vehicles, either burned up on contact with the might of the ECB or were neutered in wider political coalitions.