Document Type

Article

Publication Date

2009

Abstract

Foreign relations law serves as an internal constraint on the unilateral exercise of foreign relations powers through the distribution of authority within the national government. Given the predominance of the executive branch in foreign affairs, courts routinely resolve questions regarding the breadth of the executive's authority by reference to the Constitution, legal precedent, historical practice, and functional considerations. Though courts generally focus on these domestic factors, they have been historically quite sensitive to the international political implications of their decisions. But we don't have a clear understanding of how or when courts consider international politics in resolving foreign relations law questions. We lack a framework to begin thinking about the relationship between international politics and the allocation of decisionmaking authority.

This short Article frames foreign relations law as a function of international politics to explore the relationship between the strength of external international political constraints on a state and the levels of judicial deference to the executive in that state. Variation in the structure of international politics – bipolar, multipolar or unipolar – likely produces variation in the strength of external constraints on a state. This approach yields a simple descriptive claim and a related predictive claim. The stronger the external constraints on a state, such as the constraints present in multi-polar or bipolar worlds, the greater the likelihood of judicial deference to the executive on institutional competency grounds. Conversely, the weaker the external constraints on a state, such as the constraints present in a unipolar world, the lesser the likelihood of judicial deference to the executive. If this claim is accurate, it leads to a predictive claim that the rate of judicial deference to the executive will likely decrease as long as the United States is the hegemon of a unipolar world. This approach also provides a clearer picture of the overall level of constraint on the executive, helps describe the impact of external constraints on judicial deference, and explores the effects of international politics on the US's engagement with international law.

Disciplines

American Politics | International Law | International Relations | Law

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