Distinguishing three concepts of dialogue, this paper describes a dialogic approach to rhetoric that conceives rhetoric as coexperiential, collaborative, constitutive, open, expansive, and both traditional and radical. Further, it offers an emergent approach to studying dialogic rhetoric that draws on both rhetorical criticism and discourse analysis. It then reviews briefly four empirical projects studying conversational dialogue or dialogic rhetoric, including a series of studies of the 1957 dialogue between Martin Buber and Carl Rogers, as well as other conversations involving Gregory Bateson, B. F. Skinner, and Rush Limbaugh. It concludes by identifying the implications of this work to scholarship related to the studied conversations, to communication theory and practice, to the facilitation of public dialogue, and to the study of dialogic conversations.