This study examines the utility of a public probity-focused approach to understanding citizen disaffection with those in public life. This work shows unequivocally that perceptions of public probity are coherent, substantively meaningful, and, crucially, that they do matter for our understanding of citizen disaffection. In doing so, this book makes a strong case for the importance of deeper and more detailed research into this area. Making use of major, newly available datasets, this study presents new substantive findings about the causes of political perceptions and the consequences of political realities. This book is important reading for students and scholars of public opinion, political corruption and political integrity.