This paper argues that Habermas's conception of the rationality of moral and legal discussions has import for argumentation theorists interested in the rationality of public deliberations in politics and law. I begin with a survey of Haber mas's discourse theory and his criteria of rationality for moral and legal discourse. I then explain why, in his view, the forms of rational discourse in morality and law complement each other. My aim is to show how Habermas's account of this complementary relationship (...) opens up fruitful perspectives for argumentation theory. Specifically, his thought can stimulate research regarding, on the one hand, the ways in which legal procedures provide for presumptively rational resolutions of moral disputes and, on the other hand, the applicability of ideal argumentation-theoretic models to the legal field. I conclude with a proposal for integrating Habermas's ideas in a research program for legal argumentation. (shrink)

In this contribution the prototypical argumentative patterns are discussed in which pragmatic argumentation is used in the context of legal justification in hard cases. First, the function and implementation of pragmatic argumentation in prototypical argumentative patterns in legal justification are addressed. The dialectical function of the different parts of the complex argumentation are explained by characterizing them as argumentative moves that are put forward in reaction to certain forms of critique. Then, on the basis of an exemplary case, the famous (...) Holy Trinity case, the way in which the U.S. Supreme Court uses pragmatic argumentation in this case is discussed by showing how the court instantiates general prototypical argumentative patterns in light of the institutional preconditions of the justification in the context of the specific case. (shrink)