From Policy Advocates to Whips to Ministers, the many roles within the British Parliament are shaped not only by institutional rules but also by the individuals who fill them, yet few observers have fully appreciated this vital aspect of governing in one of the world's oldest representative systems. Applying a new motivational role theory to materials from extensive first-hand interviews conducted during the eventful 1970s, Donald Searing deepens our understanding of how Members of Parliament understand their goals, their careers, and their impact on domestic and global issues. He explores...