From last year’s shock election came opportunity. What a terrible waste | Matthew d’Ancona

In the 12 months that have followed, none of the major parties has seized the moment. Their failure may yet cost us dearOn Thursday 8 June 2017, not long after 10pm, I officially resigned as a member of the Amalgamated Union of Political Prophets, Seers and Soothsayers. The BBC’s general election exit poll showed that, far from “crushing the saboteurs”, Theresa May had somehow contrived to wipe out the Conservative majority she had inherited from David Cameron the previous July