The relationship between truth and politics has rarely seemed more troubled, with misinformation on the rise, and the value of expertise in democratic decision-making increasingly being dismissed. This book brings together a distinguished group of interdisciplinary scholars in political science, law, and philosophy to explore the most pressing questions about the role of truth, evidence, and knowledge in government. In nine timely essays, contributors examine what constitutes political knowledge, who counts as an expert, how we should weigh evidence, and what can be done to address deep disinformation. Together, they address urgent questions such as what facts we require to confront challenges like COVID-19; what it means to #BelieveWomen; and how white supremacy shapes the law of evidence. Essential reading for our fraught political moment, Truth and Evidence considers the importance of truth in the face of widespread efforts to turn it into yet another tool of political power.