Britain's 2016 vote to leave the EU divided the nation, unleashing years of political turmoil. Today, many remain unreconciled to Brexit whilst, in a tragic irony, some of those most committed to it are angry and dissatisfied with what was delivered. In this clear-headed assessment, Chris Grey argues that this painful legacy was all but inevitable, skilfully unpacking how and why the promise of Brexit dissolved during the confusing and often dramatic events that followed the referendum. Now fully updated with an afterword covering each element of the Brexit debate since the end of the transition period in 2021, this new edition remains the essential guide to one of the most bitterly contested issues of our time.