Do citizens of a nation such as the United States have a moral duty to obey the law? Do officials, when interpreting the Constitution, have an obligation to follow what that text meant when ratified? To follow precedent? To follow what the Supreme Court today says the Constitution means?

These are questions of political obligation (for citizens) and interpretive obligation (for anyone interpreting the Constitution, often officials). Abner Greene argues that such obligations do not exist. Although citizens should obey some laws entirely, and other laws in some instances, no one has...