By retracing tales of failure as well as success, this book examines moments overlooked by historians of contemporary Britain, and most are examined through the lens of political science for the first time. Piecing together internal papers and memos from the archives as well as interviews with many of the key players, this book explores two questions. Why are politicians so often swimming against the tide when trying to co-operate with their competitors, even when it appears rational to do so? And, despite the challenges imposed by the Westminster Model, what is it that motivates those that try? The answers to these questions put recent developments in British politics in historical perspective, and provide clues as to what might happen when the idea of co-operation rears its head once again as the next general election approaches.