For the past forty years, prominent pro-life activists, judges, and politicians have invoked the history and legacy of American slavery to elucidate aspects of contemporary abortion politics. As is often the case, many of these popular analogies have been imprecise, underdeveloped, and historically simplistic. In Slavery, Abortion, and the Politics of Constitutional Meaning, Justin Buckley Dyer provides the first book-length scholarly treatment of the parallels between slavery and abortion in American constitutional development. In this fascinating and wide-ranging study, Dyer demonstrates that slavery and abortion really are historically, philosophically, and legally intertwined in America. The nexus, however, is subtler and more nuanced than is often suggested, and the parallels involve deep principles of constitutionalism.