This book represents the first systematic effort to examine (1) the factual accuracy of the claims made in an entire political advertising campaign, (2) the visuals and sound cues used in that advertising and their relationship with the tone and accuracy of ads, and (3) the impact of the accuracy of claims on what people know and how they vote in a real campaign. The research is based on several years of labor-intensive coding of the factual accuracy of every claim made in the presidential...