Lee Drutman: America is now the divided republic the Framers feared

This approach should take as its starting point substantive moral principles that conduce to the common good, principles that officials (including, but by no means limited to, judges) should read into the majestic generalities and ambiguities of the written Constitution. These principles include respect for the authority of rule and of rulers; respect for the hierarchies needed for society to function; solidarity within and among families, social groups, and workers’ unions, trade associations, and professions; appropriate subsidiarity, or respect for the legitimate roles of public bodies and associations at all levels of government and society; and a candid willingness to “legislate morality”—indeed, a recognition that all legislation is necessarily founded on some substantive conception of morality, and that the promotion of morality is a core and legitimate function of authority. Such principles promote the common good and make for a just and well-ordered society.

To be sure, some have attempted to ground an idea of the common good on an originalist understanding, taking advantage of the natural-rights orientation of the founding era. Yet that approach leaves originalism in ultimate control, hoping that the original understanding will happen to be morally appealing. I am talking about a different, more ambitious project, one that abandons the defensive crouch of originalism and that refuses any longer to play within the terms set by legal liberalism. Ronald Dworkin, the legal scholar and philosopher, used to urge “moral readings of the Constitution .” Common-good constitutionalism is methodologically Dworkinian, but advocates a very different set of substantive moral commitments and priorities from Dworkin’s, which were of a conventionally left-liberal bent.

Common-good constitutionalism is not legal positivism, meaning that it is not tethered to particular written instruments of civil law or the will of the legislators who created them. Instead it draws upon an immemorial tradition that includes, in addition to positive law, sources such as the ius gentium—the law of nations or the “general law” common to all civilized legal systems—and principles of objective natural morality, including legal morality in the sense used by the American legal theorist Lon Fuller: the inner logic that the activity of law should follow in order to function well as law.

Common-good constitutionalism is also not legal liberalism or libertarianism. Its main aim is certainly not to maximize individual autonomy or to minimize the abuse of power (an incoherent goal in any event), but instead to ensure that the ruler has the power needed to rule well. A corollary is that to act outside or against inherent norms of good rule is to act tyrannically, forfeiting the right to rule, but the central aim of the constitutional order is to promote good rule, not to “protect liberty” as an end in itself. Constraints on power are good only derivatively, insofar as they contribute to the common good; the emphasis should not be on liberty as an abstract object of quasi-religious devotion, but on particular human liberties whose protection is a duty of justice or prudence on the part of the ruler.