Seagrave’s teaching and research focus on American political principles, including both their application in American political history and their antecedents in intellectual history. He is the author of The Foundations of Natural Morality: On the Compatibility of Natural Rights and the Natural Law (University of Chicago Press, 2014) and The Accessible Federalist (Hackett Publishing Co., 2017), as well as editor of Liberty and Equality: The American Conversation (University of Kansas Press, 2015). He holds a doctorate from the University of Notre Dame.