I. The Inseparable Relationship Between State and Democracy

Although it has long been widely recognized in Germany that the German Basic Law is characteristic of its commitment to international cooperation, and especially to European integration, most German constitutional law scholars adhere to the idea that the principle of open statehood (“offene Staatlichkeit”) must not be confused with the relativization, or even erosion, of national sovereignty.Footnote ² Rather, as the Constitutional Court of the Federal Republic of Germany puts it,

According to mainstream opinion in Germany, international law and domestic law are different in nature not only because international law, unlike domestic law, principally regulates the relationship among nations, but in particular because the domestic constitutional orders of democratic states express the popular sovereignty of their own people and are thus characteristic of their democratic significance.Footnote ⁴ Therefore, the qualitative distinction between international and domestic law suggests that, to prevent a loss of sovereignty, the domestic legal order can neither be replaced by international law, nor be automatically penetrated by any international legal norms. In view of the irresistible trend toward European integration—which inevitably challenges the traditional view on international law—many German constitutional law scholars feel it necessary to underscore the distinction between European Union law and international law.Footnote ⁵ This is done to safeguard constitutional democracy against the far-reaching influence of Europeanization. While international law—including the European Convention on Human Rights (“the Convention”)—generally enjoys the same rank as a federal statute in the German legal system—as long as it fulfills certain conditions provided by the Basic Law—European Union law is recognized specifically as supranational law, and accordingly has primacy over the law of the member states when a conflict of laws arises.Footnote ⁶ On the one hand, this distinction underlines the special role of European Union law in the German legal system. On the other hand, though, it shows that—while acknowledging the reality—German mainstream opinion attempts to limit the impact of Europeanization and internationalization through clarifying the different roles of different types of international law in the domestic legal system. Therefore, even though European Union law enjoys primacy over the domestic law, it is repeatedly asserted that such a primacy is not equivalent to supremacy, because the relationship between European Union law and domestic law cannot simply be understood as a hierarchy of norms.Footnote ⁷ Moreover, as far as other international norms—such as the Convention—are concerned, it is widely accepted that their binding force is limited due to their formal rank in the domestic legal orderFootnote ⁸ even though they may serve the function of “interpretative tools” (“Auslegungshilfe”) in “determining the content and scope of fundamental rights and constitutional principles of the Basic Law.”Footnote ⁹

More importantly, the discussions following from this distinction suggest that the German mainstream opinion has never abandoned the classic idea of national sovereignty, which above all, is characteristic of the adherence to the so-called dualistic view on the relationship between international law and domestic law,Footnote ¹⁰ and thus to the inviolability of domestic constitutional identity.Footnote ¹¹ Accordingly, the principle of open statehood does not challenge dualism at all. Rather, it reinforces the idea that the domestic constitutional order—while open to international cooperation and interaction—occupies an even more important role in the age of internationalization as the social prerequisites for a functioning and vibrant democracy can only be developed on the domestic level.Footnote ¹² As Dieter Grimm puts it:

According to a dualistic view, therefore, neither European Union law nor international law are allowed to alter the central status of the state in the international legal community. This is because only the state is able to fulfill the requirements of modern democracy and in this way retain the value of democracy. In other words, the state remains “the most important source of legitimation, including the legitimation of international organizations,”Footnote ¹⁴ because the state and democracy are inseparable.Footnote ¹⁵ Consequently, both European Union law and international law are to be regarded merely as “external law” that differs from domestic law not only in a formal sense, but also, and especially, from a democratic perspective.

II. The Absolute Supremacy of the Constitution

Precisely based on the democratic significance of the domestic constitutional order, the principles of openness towards international law (“Völkerrechtsfreundlichkeit”) and European law (“Europarechtsfreundlichkeit”)Footnote ¹⁶ not merely presuppose the central role of the German Basic Law in determining the respective rank and status of international law and European Union law in the domestic legal system of the Federal Republic of Germany, but help guarantee the unconditional supremacy of the German Basic Law over international and European Union law.Footnote ¹⁷ With respect to the relation to international law, therefore, the German mainstream opinion tends to regard reference to international law in interpreting the Constitution as a method which is part of, or at least similar to, comparative constitutional interpretation.Footnote ¹⁸ Such a viewpoint indicates that, even in the case of the Convention, where the interpretation of Convention rights—especially by the European Court of Human Rights—may affect the interpretation of the Basic Law, the international law can never trump the domestic constitutional law. On the contrary, the formal rank—as well as the binding force of the international human rights law—is to be determined by the Basic Law. Viewed this way, the special function of the Convention as an interpretation aid on the level of constitutional law does not result from its universal significance for human rights protection, but from Article 1.2 of the Basic Law providing that the German people “acknowledge inviolable and inalienable human rights as the basis of every community, of peace and of justice in the world.”Footnote ¹⁹ Therefore, in recognizing the fundamental rights guaranteed in the Basic Law as “a manifestation of human rights,” the Constitutional Court of Germany reaffirmed the supremacy of the German Basic Law over the Convention in its decision on Sicherungsverwahrung in 2011. As the Court said:

Remarkably, the Constitutional Court’s insistence on the supremacy of the Basic Law is not exhausted in the relation to international law. As mentioned before, in response to the general recognition of the primacy of European Union law over domestic law—including domestic constitutional law—the mainstream opinion in Germany insists that the legal system of the European Union does not constitute a hierarchy of norms with the supremacy of European Union law.Footnote ²¹ This view makes it so that the alleged priority of European Union law is not one of validity, but merely of application (so-called “Anwendungsvorrang”).Footnote ²² Accordingly, in its decision on the Lisbon Treaty in 2009, the Constitutional Court of Germany held that the core content of the constitutional identity of the Basic Law is inviolable even in recognition of the primacy of application of European Union law.Footnote ²³ Moreover, in the decision on the European arrest warrant in 2015, the Constitutional Court made it more clear that the scope of such primacy is limited by the Basic Law’s constitutional identity. As the Court said:

To this extent, it can be said that while European Union law possesses primacy of application in general, the Basic Law’s constitutional identity enjoys unconditional supremacy over European Union law. According to the reasoning of the Constitutional Court, this is so, not only because the guarantee of the Basic Law’s constitutional identity safeguards the protection of human rights and, in particular, human dignity,Footnote ²⁵ but because the Federal Republic of Germany—like other member states of the European Union—remains the “master of the treaty.”Footnote ²⁶ Precisely in this context, therefore, it is no surprise that the Constitutional Court chose not to stress the special character of the European Union as a supranational entity, but rather the nature of European Union law as international law, that is to say, as external law.Footnote ²⁷

As a whole, the mainstream opinion in Germany, led by the decisions of the Constitutional Court, constantly seeks to find a balance between the constitutional principle of open statehood and the protection of the constitutional identity of the Basic Law. Consequently, it welcomes substantial influences of international law and European law on the interpretation of the Basic Law, and at the same time adheres to the absolute supremacy of the Basic Law, and especially of the core content of its constitutional identity. In particular, many constitutional law scholars in Germany believe that—in view of the inseparable relationship between state and democracy—only the supremacy of the Basic Law over supra- and international norms ensures the supremacy of the democratic self-determination of the German people.Footnote ²⁸ Furthermore, it is worth noting that the insistence on the absolute supremacy of the Basic Law is usually accompanied by the emphasis on the significant role of the Constitutional Court of Germany in safeguarding democracy in Germany. While the Constitutional Court has been criticized for exceeding the limits of its competence and, especially, for invading the power of the democratically legitimated legislators in numerous domestic separation-of-powers debates,Footnote ²⁹ in external relations it is usually regarded as the guardian of the Basic Law, and thus, of democracy—particularly through its identity review.Footnote ³⁰

I. “American Exceptionalism”

As indicated previously, democratic concerns about the influence of international law on domestic constitutional law are expressed not only in Germany, but also in the United States. For many American constitutional law scholars, the Constitution of the United States is regarded as an essential expression of the democratic self-determination of its people. Unlike the German mainstream opinion, the American skeptics have never built their democratic arguments on the basis of the alleged principle of open statehood. Rather, they tend to rely on an understanding of democracy that is antagonistic to the idea of openness toward transnational interaction through reference to international resources. Moreover, for some of those who simply reject any foreign influences on the interpretation of the U.S. Constitution, such an understanding of democracy may only apply to the United States. To this extent, it can be said that, in comparison to the democratic concerns of the German mainstream opinion, the democratic arguments advanced by many American opponents of the use of foreign law in constitutional interpretation are developed under the influence of the so-called “American exceptionalism.”Footnote ³¹

To put it simply, American exceptionalism refers to the uniqueness of the United States in comparison with all other nations, including the developed ones.Footnote ³² Based on its unique political, cultural, and religious traditions, the United States regards itself as a leader rather than a follower in the world community, and thereby tends to resist rules and standards developed elsewhere. As Michael Ignatieff observes: “[U]nder some administrations, it has promoted human rights as if they were synonymous with American values, while under others, it has emphasized the superiority of American values over international standards.”Footnote ³³ According to his analysis, therefore, American exceptionalism encompasses at least three elements: Exemptionalism, double standards, and legal isolationism.Footnote ³⁴ In the context of this Article, it is worth noting in particular, that the dimension of the so-called legal isolationism expresses the democratic concerns of some American constitutional law scholars about the use of foreign law in the interpretation of the U.S. Constitution. The alleged phenomenon that “American judges are exceptionally resistant to using foreign human rights precedents to guide them in their domestic opinions”Footnote ³⁵ results not merely from the presupposition that American constitutionalism “regards constitutional law as the embodiment of a particular nation’s democratically self-given legal and political commitments,”Footnote ³⁶ but also, and particularly, from the belief that “[t]he U.S. Constitution differed in one fundamental respect from any democratic constitution that any large state had ever had: It was enacted through a process of popular deliberation and consent.”Footnote ³⁷ Furthermore, to the extent that “[t]he United States has a vigorous, and successful method for human rights protection,”Footnote ³⁸ the American Constitution reflects not only the democratic self-determination of the American people, but also the admirable achievement of democracy in America. As John O. McGinnis observes:

In the sense that American democracy has been exceptionally successful in comparison internationally, therefore, critics of an “internationalist approach” in interpreting the U.S. Constitution warn that “[o]ver-reliance on foreign precedents conflicts with the structure and history of our own Constitution.”Footnote ⁴⁰ In particular, “[t]here is no indication that the American people today believe that their constitutional rights and delegations of powers should be interpreted in light of foreign jurisdictions. In fact, American attitudes toward international human rights indicate the opposite.”Footnote ⁴¹ In short, for those who stress the special character of American experience, interpreting the Constitution of the United States under the guidance or influence of foreign law would undermine popular sovereignty precisely because it enables alien law to decide how the American Constitution should be understood, and in this way supersede the democratic will of the American people.

To be sure, because opinions with regard to the legitimacy or appropriateness of using foreign resources in constitutional interpretation are divided in the United States,Footnote ⁴² American exceptionalism does not at all represent the consensus opinion of the American constitutional law scholars with regard to foreign law.Footnote ⁴³ Nevertheless, in comparison with the situation in Germany, the idea of American exceptionalism does demonstrate the characteristics of its conception of democracy. For those who believe in the uniqueness and superiority of American experiences and values, the interpretation of the U.S. Constitution should not take foreign law into consideration. This is because not only is the Constitution an expression of democratic will of the American people, but also, and particularly, American constitutional democracy is so different and extraordinarily successful that it cannot be guided by any foreign norms and institutions. As Rubenfeld states, “[t]he rest of the world needed American law and American-modeled constitutions, but we didn’t. The rest of the world might not be able to trust its own democratic self-government, but we could.”Footnote ⁴⁴ Accordingly, it is argued that American democracy is to be distinguished from the European democratic tradition because in searching for universal rights and values, Europeans tend to regard constitutionalism as a tool for constraining democracy.Footnote ⁴⁵ For example, Kenneth Anderson argues that, especially after 1945, European constitutionalism has developed “a tradition deeply fearful of democracy and above all hostile to the concept of popular sovereignty.”Footnote ⁴⁶ By contrast, Americans tend to trust democratic self-government and popular sovereignty rather than to develop universal human rights and principles to be imposed upon democracy.Footnote ⁴⁷ Indeed, in the American view, human rights themselves are to be understood as “products of democracy.” Moreover, as McGinnis states, “the United States has a structure of federalism and more general traditions of decentralization that are important processes for testing the content of rights.”Footnote ⁴⁸ Rubenfeld thus argues that “[f]or Americans, a democratic nation’s constitutional law is supposed to reflect that nation’s fundamental legal and political commitments.”Footnote ⁴⁹ He even maintains that “[t]he US Constitution did not speak in the language of universal rights. It spoke in the language of popular sovereignty.”Footnote ⁵⁰ Viewed this way, using foreign law in interpreting the U.S. Constitution becomes even more problematic because it attempts to impose universal values and principles that are developed outside the United States on the constitutional democracy of the U.S., which has never embraced the idea that universal human rights transcend national democratic politics. Precisely in comparison with the German discussions and critiques of an overreliance on international law, therefore, the American democratic arguments against the use of foreign law in constitutional interpretation are remarkably characteristic of their criticism under the influence of American exceptionalism. As analyzed before, although German mainstream opinion constantly adheres to a dualistic construction of the relationship between international and domestic law and thereby regards international law as external law, none of the democratic concerns in Germany have been based upon the belief of the uniqueness of the German constitutional democracy. Accordingly, this explains the assertion that the development of German constitutional law should by no means be affected by alien views. By contrast, as already shown above, a number of those who oppose the use of foreign law in American constitutional interpretation tend to underline the distinctiveness and incomparability of American constitutionalism. To this extent, the apparently widespread concerns about foreign law in the United States can only be explained with reference to the legacy of American exceptionalism.

It is thus worth noting in the present context, that the significance of such an exceptionalist view for the development of American constitutional law should not be undervalued. While the term “American exceptionalism” does not always appear in arguments against the use of foreign law, discussions highlighting the exceptional success of American constitutionalism and the contrast between “foreign law” and “our law” are to be traced back to the implicit influence of American exceptionalism.Footnote ⁵¹ As Eric A. Posner and Cass R. Sunstein emphatically argue:

Thus conceived, whereas American exceptionalism by no means qualifies as the majority opinion with regard to the use of foreign law in constitutional interpretation, the underlying idea that America is far more than “merely one nation among others” appears to be widely accepted by Americans. It is thus no surprise that, as “commonly understood by American jurists,” American constitutional law is “root-and-branch domestic law.”Footnote ⁵³

II. The Impenetrable American Constitution

It follows from the alleged contrast between the European and the American conceptions of constitutionalism and democracy that—at least for those who adhere to American exceptionalism—American constitutional law should not only resist any attempts to interfere with the democratic governance of the United States, but, in particular, prevent itself from being “rewritten” by any non-American legal norms and developments. From this perspective, it is not at all surprising that most American exceptionalists are not interested in discussing the legitimacy or appropriateness of the resort to foreign law based on a careful distinction among the various ways that foreign law is used in constitutional interpretation, but rather simply reject foreign law as a whole.Footnote ⁵⁴ Nor do they care about the different types of foreign law or the different theoretical approaches between monism and dualism in inquiring into the relationship between international and domestic law.Footnote ⁵⁵ For the exceptionalists, after all, what really matters is not how, or to what extent foreign law could be incorporated into the American constitutional order, but whether the content of the U.S. Constitution is truly determined by the American people themselves, “free from the views of other nations or the international community.”Footnote ⁵⁶ From the exceptionalist view, therefore, because the U.S. Constitution is the product of American democracy—which is unique in the sense that it serves as a model for the international community—there is no reason that its interpretation should refer to any non-American values or principles. To put it simply, according to American exceptionalism, the U.S. Constitution is democratic, purely American, anti-universalistic, and therefore not only superior to, but also impenetrable by, foreign law. As Antonin Scalia puts it: “Irrelevant are the practices of the ‘world community,’ whose notions of justice are (thankfully) not always those of our people.”Footnote ⁵⁷

Precisely in view of this impenetrability, the point of constitutional interpretation is to defend the U.S. Constitution against foreign intervention, not to reshape it according to the preferences, or even political motivations, of the Supreme Court Justices. It is thus not surprising that the Supreme Court has been sharply criticized for resorting to foreign law in a selective and arbitrary manner,Footnote ⁵⁸ even though in most cases the foreign resources cited only serve an informative function.Footnote ⁵⁹ Unlike the situation in Germany—where the Federal Constitutional Court is usually expected to be the most important guardian of German democracy in external relationsFootnote ⁶⁰—American critics have warned again and again that allowing the Supreme Court to cite foreign law in interpreting the U.S. Constitution not only inappropriately enhances judicial power,Footnote ⁶¹ but in this way inevitably threatens democracy in America, because the democratic discourse and governance is reserved exclusively to the American people, not foreigners.Footnote ⁶² Observed this way, the democratic concerns about judicial arbitrariness in choosing and using foreign law result not so much from the so-called “counter-majoritarian difficulty” of the Supreme Court.Footnote ⁶³ Rather, to the extent that, as a court under the common-law tradition, the U.S. Supreme Court has always played the central role in shaping and developing American constitutional law and democracy,Footnote ⁶⁴ the democratic concerns expressed by those who believe in American exceptionalism stem mainly from the fear that the Supreme Court would become even more powerful through “de-Americanizing” the American Constitution.

I. Different Conceptions of Democracy in Germany and the United States

The foregoing analysis has clarified that the democratic arguments advanced in Germany and the United States are actually based on different understandings of democracy. In other words, in saying that the effect of foreign law on the domestic constitutional order should be constrained for democratic reasons in particular, German and American critics tend to focus on different aspects of democracy, and therefore express different democracy-related concerns. As discussed above, the German mainstream opinion insists that democracy can only be realized and safeguarded within the state, and in particular, by the national constitutional order. Therefore, in order to prevent the erosion of democracy through the irresistible trend of Europeanization, or to find a balance between European integration and democratic control, what is crucial is to defend the constitutional identity of the German Basic Law especially through adherence to its absolute supremacy over any foreign law, including European Union law. By contrast, those Americans who believe in American exceptionalism refer to democracy not merely because they insist on the inviolable role of the state and the domestic constitutional order in realizing democracy, but particularly because they think democracy in America is so unique that it is incomparable with any other democratic traditions and experiences. It is thus quite reasonable to assert that—while other national constitutional systems may have to adjust themselves to internationalization and globalization—American constitutional law is entitled to reject any explicit or implicit intrusion of non-American resources.Footnote ⁶⁵ Observed this way, it can be said that while the German critics adhere to the inseparable relationship between democracy and state, the American critics tend to emphasize the inseparable relationship between democracy and America. For the German constitutional order, therefore, the democratic baseline is that the constitutional identity must remain untouched. In the context of the U.S. constitutional system, however, the question is not how foreign law could be incorporated into American constitutional law, but whether foreign law should ever be taken into account in light of constitutional interpretation.

The observation that German and American critics embrace different conceptions of democracy in defending the respective constitutional orders may help explain why the German and the American democratic arguments tend to misunderstand each other to a certain degree. On the one hand, as mentioned before, some American scholars emphatically assert the fundamental difference between European and American constitutional traditions, arguing that Europeans today have developed “a tradition deeply fearful of democracy and above all hostile to the concept of popular sovereignty.”Footnote ⁶⁶ In their view, so-called European democracy is “less democratic than the American democracy” not merely because the post-war Europeans “were ready to embrace an antinationalist, antidemocratic international legal system,”Footnote ⁶⁷ but more deeply because the continental European democracies are characteristic of “their monarchical histories, their lingering aristocratic cultures, and their tendency to favour centralised, bureaucratic governance.”Footnote ⁶⁸ Thus, it is even argued that Europeans, obsessed with abstract, universal rights and principles, are in general “tolerant” of the European Union’s democratic deficit.Footnote ⁶⁹ While such a viewpoint may intend to exaggerate the contrast between Europe and America so as to highlight the uniqueness of American constitutionalism, it apparently fails to notice the theoretical, as well as practical, developments in German constitutional law. As illustrated before, the German discussions are always preoccupied with a dualistic view on the relationship between international and domestic law, and thereby tend to emphasize the indispensable role of the states in safeguarding popular sovereignty and constitutional democracy. Therefore, especially in the context of external relations, German mainstream opinion has never overlooked the significance of democracy and self-governance. To the contrary, democracy remains a key argument against an unconstrained Europeanization both in scholarship and practice. As shown above, it is precisely the Federal Constitutional Court of Germany that refers not only to the close relationship between national sovereignty and democracy, but to the substantial democratic limits on European integration, as well as the absolute supremacy of the Basic Law in defending German democracy.Footnote ⁷⁰ Viewed this way, the comments of some American observers on European and German constitutional traditions are not merely superficial and misleading. Rather, they obviously ignore the crucial role played by the democratic arguments of the German Constitutional Court and constitutional law scholars in contemporary discussions in German constitutional law. From a comparative perspective, such a huge, fundamental misunderstanding may result from the fact that, as was suggested, those who believe in American exceptionalism understand democracy in a purely American way. To the extent that only American democracy qualifies as a real democracy, the democratic arguments advanced in Germany—however skeptical towards Europeanization and internationalization—are inevitably less democratic.

On the other hand, it seems that the characteristics of the democratic arguments advanced by American exceptionalists have received insufficient attention in some German or European discussions as well. To be sure, the idea of American exceptionalism is not at all unfamiliar to German scholars.Footnote ⁷¹ Nevertheless, the exceptionalist rejection of the use of any foreign law in light of the interpretation of the U.S. Constitution is usually understood as a typical response to the counter-majoritarian dilemma of the U.S. Supreme Court. To put it concretely, in the sense that the U.S. debates on the democratic legitimacy of judicial review have, admittedly, been dominated by discussions relating to the counter-majoritarian difficulty of judicial review, some European commentators tend to regard the exceptionalist critique of the Supreme Court’s reference to foreign law as a democratic, counter-majoritarian difficulty-related concern about the overexpansion of judicial discretion.Footnote ⁷² Moreover, it has been pointed out that the exceptionalist critique reflects concerns about the democratic deficit of the decision-making process of international law, whereby democracy is referred to as self-determination and self-governance of nation-states.Footnote ⁷³ From the perspective of American exceptionalism, though, the references both to the counter-majoritarian difficulty of the Supreme Court and to the democratic deficit of international law show that these European commentators neglect one important dimension of the exceptionalist conception of democracy: An exceptionalist insistence on the uniqueness and pureness of American democracy, and thereby an exceptionalist identification of democracy with American constitutional traditions. As illustrated before, such a conception of democracy is to be distinguished from the German conception of democracy, because it puts emphasis not merely on the inviolable role of the state in realizing and safeguarding democracy, but more radically on the unique, exceptional impenetrability of the U.S. Constitution.Footnote ⁷⁴ Viewed this way, the exceptionalist critique of the use of foreign law in constitutional interpretation results less from the concern about the counter-majoritarian difficulty of the Supreme Court than from the belief that all American decision-making processes, including judicial review, should be free from foreign control and influence. In other words, the exceptionalists have criticized the U.S. Supreme Court for its reliance on foreign law, not because they think the Supreme Court should remain as a non-political branch that has nothing to do with democratic decision-making, but because they think that—as an expression of American democracyFootnote ⁷⁵—the constitutional interpretation of the Supreme Court should only reflect the will of the American people, and thus must reject any interpretative tools that are non-American.

II. One Common Myth

While German and American democratic arguments in the context of the relationship between foreign law and domestic constitutional law stem from different understandings of democracy, they both presuppose a state-centered conception of democracy and of the international legal order. On the one hand, both the German insistence on the inviolable constitutional identity and supremacy of the German Basic Law over international—as well as supranational and foreign law—and the American belief in the uniqueness and therefore impenetrability of the American Constitution adhere to the standpoint that, in light of international relations, the primary function of democracy is to protect the self-determination of the states. In this regard, both the German and the American democratic arguments share the presupposition that real democracy can only exist within the state. Accordingly, the self-determination of the individual must be premised upon the self-determination of the state, which thus should always play the decisive role in the international legal order precisely on democratic grounds.Footnote ⁷⁶ On the other hand, both the German and the American democratic concerns about the excessive intrusion of foreign law, and especially of international law, are based on the presupposition that the expansion of international law threatens to undermine democracy to the extent that in building up a transnational, universal legal system, it aims at the establishment of a substantially uniform legal order.Footnote ⁷⁷ This inevitably ignores the diversity of different domestic legal traditions and accordingly runs counter to the democratic requirement that the states’ self-determination must remain intact. Therefore, it is no surprise that many German constitutional law scholars constantly emphasize the heterogeneity between domestic law and international or transnational law, and therefore reject a hierarchical view on the legal system of the European Union with the priority of European Union law over domestic law. From the perspective of a state-centered conception, such a hierarchical view would inevitably imply the recognition of a new hierarchy of norms that is ready to replace the respective self-determination of domestic constitutional orders with a set of uniform, homogeneous rules. Moreover, as suggested before, those who embrace the idea of American exceptionalism even condemn the so-called internationalist approaches in favor of the development of global and comparative constitutionalism.Footnote ⁷⁸ For them, American democracy means the self-determination of the American people. Therefore, as an expression of American democracy, American constitutional law should consist only of elements that are truly American. In this regard, even a transnational constitutional dialogue would become problematic in the sense that—in searching for universal principles and values—it allows foreign viewpoints and experiences to affect the development of American constitutional law and American democracy.Footnote ⁷⁹

It follows from the foregoing analysis that the state-centered conception shared by the German and the American democratic arguments adheres to the contrast between domestic law and foreign law. While the former stands for popular sovereignty and democratic self-determination, the latter refers to something external and—when it comes to international law—something that aims at uniformity and homogeneity. To this extent, foreign law—international law in particular—is vulnerable not only because it is anti-democratic, but because it is anti-pluralistic. Therefore, in response to the irresistible trends towards Europeanization and internationalization, what is crucial is not to find a substantial harmony between foreign law and domestic constitutional law, but rather to defend the domestic constitutional order from being relativized or eroded. Such a state-centered and thereby solipsistic view on the relationship between foreign law and domestic law,Footnote ⁸⁰ however, inevitably leads to contradictions inherent in the respective democratic arguments of Germany and the United States. With regard to German discussions, the insistence on the absolute supremacy of the German Constitution contradicts the principle of openness towards international law and European Union law in the sense that it simply excludes the possibility of substantial harmonization or convergence through transnational judicial dialogues when a collision of norms between international law and domestic constitutional law occurs.Footnote ⁸¹ As far as American exceptionalism is concerned, the contradiction lies in the fact that the adherence to the impenetrability of the American Constitution hardly corresponds to the principle of pluralism underlying American democracy.Footnote ⁸² These contradictions encountered in both countries reflect that while German and American democratic arguments seem to think highly of the liberal and pluralistic dimensions of democracy, their attitudes toward foreign law are far from open-minded. The underlying state-centered conceptions of both democracy and of international law turn out to be self-centered and change-resistant.

Observed this way, the democratic arguments advanced both in Germany and the United States simply ignore the fact that there is not just one state whose right to self-determination deserves respect. Rather, the international legal community is characteristic of the coexistence of various international and domestic legal systems, whereby each domestic legal order enjoys an equal status. From this perspective, the development of an international legal order with primacy of international law over domestic law is necessary particularly because it enables and, at the same time, ensures an equal and peaceful coexistence of the states.Footnote ⁸³ The ultimate goal of international law, then, is neither to establish a universal legal order—which ignores altogether the self-determination of domestic constitutional orders—nor to replace the pluralistic developments of different domestic legal orders with a set of substantially homogeneous standards, but rather to equally respect and protect the respective characteristics of different domestic legal systems.Footnote ⁸⁴ Precisely to this end, the international legal order is to be understood as a framework order with numerous delegations based on which the domestic constitutional orders are not only allowed, but also obliged, to concretize the international norms so as to fulfill the goals set by international law.Footnote ⁸⁵ In other words, such a framework order is not full of pre-determined rules and directives. Rather, in pursuit of the equal and peaceful coexistence of domestic legal orders, it leaves enormous room for concretization, interaction, and harmonization.Footnote ⁸⁶ This is especially true when it comes to international and European human rights law. For example, both the Convention and the Charter of Fundamental Rights of the European Union (“CFR”) show that the transnational human rights norms do not intend to establish substantially uniform human rights standards that are ready to replace domestic ones.Footnote ⁸⁷ Instead, their primary goal is to construct a universal system that promotes the protection of human rights through guaranteeing the human rights standards ensured by the member statesFootnote ⁸⁸ and, under certain preconditions, enabling an individual to make claims against his or her own country.Footnote ⁸⁹ To this extent, the development of international human rights law encourages, rather than frustrates, substantial inputs from domestic human rights norms, especially through judicial dialogues,Footnote ⁹⁰ as such dialogues may contribute more effectively to mutual goal-setting without overlooking the diversity of human rights demonstrated in domestic legal systems.

This is not to say, however, that the framework orientation of the international legal order can only be found within the context of international and European human rights law. Rather, as was shown in a number of discussions on European administrative law, many— if not most—provisions of the European Union in various fields, such as environmental law and telecommunications law, tend not to make detailed regulations by themselves. Instead, they usually set normative goals that are to be fulfilled by the member states, thus empowering the member states to enact norms determining concrete rules or standards so as to implement the European Union law in a way that is most suitable for domestic needs.Footnote ⁹¹ Numerous examples show that it is the framework setting rather than predetermination that characterizes European administrative law.Footnote ⁹²

Particularly the example of international human rights law, though, shows the complementary relationship between human rights protection and democracy. In pursuit of a more comprehensive and high-level protection of human rights, international human rights law does not just merely protect individuals against the abuse of public powers—both on the international and the national level—but also in this way enables individuals to realize their freedom in the sense of self-determination. To the extent that democracy is to be understood as a form of government, which not only follows majority rule but also cares about minority rights,Footnote ⁹³ the development of international human rights law is able to contribute to the promotion of democracy precisely in the sense that it facilitates communication between majorities and minorities. Thus conceived, both the insistence on the absolute supremacy of the German Basic Law and the adherence to the impenetrability of the American Constitution tend to neglect the rights-promoting dimension of a pluralistic democracy to the extent that they adhere to a state-centered conception of democracy. Moreover, from the perspective that international law constitutes a framework order that aims at ensuring an equal and peaceful coexistence of the states, such a state-centered approach to international legal system—be it dualism or exceptionalism—inevitably runs the risk of misjudging the nature and task of international law.Footnote ⁹⁴