Beyond the Opinion: The Rhetorical Foundations of Roper v. Simmons

Abstract

Amid growing polarization and declining public trust in the U.S. Supreme Court, under-standing how judicial authority is rhetorically constructed has become increasingly urgent. This paper analyzes Roper v. Simmons (2005) to show how judicial rhetoric reveals competing assumptions about the Court’s legitimacy. Drawing on Stephen Toulmin’s modelof argumentation, particularly his concept of implicit backings, the analysis demonstrate show Justice Kennedy’s majority opinion and Justice O’Connor’s dissent rest on contrasting visions of judicial authority. Kennedy frames the Court as a moral guide, grounding its legitimacy in “evolving standards of decency,” scientific research, and international norms. O’Connor instead underscores judicial restraint, precedent, and deference to democratic processes. By uncovering these implicit backings, the paper argues that the Court’s power depends not only on strategic legal reasoning but also on rhetorical framing and moral positioning. Situating Roper within broader trends of judicial polarization, the paper illustrates how rhetorical strategies shape constitutional interpretation and public perceptions of the Court.