My goal in this essay has been to outline a deliberative model of democracy that incorporates features of practical rationality. Central to practical rationality is the possibility of free public deliberation about matters of mutual concern to all. The discourse model of ethics and politics suggests a procedure for such free public deliberation among all concerned. Such processes of public deliberation have a claim to rationality because they increase and make available necessary information, because they allow the expression of arguments in the light of which opinions and beliefs need to be revised, and because they lead to the formation of conclusions that can be challenged publicly for good reasons