The introduction argues that Cavell’s democratic perfectionism is uniquely situated to respond to the democratic crisis of post-truth politics. It argues that post-truth politics is a political response to the epistemological problem of skepticism. As a first step in exploring democratic perfectionism, the introduction offers a brief overview of Cavell’s interpretation of skepticism and its salience for politics. Section 2 provides a preliminary sketch of skepticism. Section 3 expands what Cavell means by responsiveness. Section 4 discusses how these two concepts shape democratic perfectionism. Section 5 asks, where is the politics in Cavell’s writings? While Cavell never wrote a text that was explicitly about political philosophy, his thoughts on politics are scattered throughout his writings. An initial obstacle to interpreting his democratic perfectionism is identifying where in his thought to look for those ideas. Section 6 explains how these themes are analyzed throughout the remainder of the book.