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A Prophylactic Approach To Compact Constitutionality, Katherine Mims Crocker

Notre Dame Law Review

From COVID-19 to climate change, immigration to health insurance, firearms control to electoral reform: state politicians have sought to address all these hot-button issues by joining forces with other states. The U.S. Constitution, however, forbids states to “enter into any Agreement or Compact” with each other “without the Consent of Congress,” a requirement that proponents of much interstate action, especially around controversial topics, would hope to circumvent.

The Supreme Court lets them do just that. By interpreting “any Agreement or Compact” so narrowly that it is difficult to see what besides otherwise unlawful coordination qualifies, the Court has essentially read …