What is the nature of the US Constitution? How ought it to be interpreted? Ronald Dworkin famously argued that fidelity in interpreting the Constitution as written calls for a fusion of constitutional law and moral philosophy. Sotirios A. Barber and James E. Fleming take up that call, arguing for a philosophic approach to constitutional interpretation. In doing so, they systematically criticize competing approaches — textualism, consensualism, originalism, structuralism, doctrinalism, minimalism, and pragmatism — that aim and claim to avoid a philosophic approach. They show that none can responsibly avoid philosophic reflection and choice in interpreting the Constitution. At the same time, Barber and Fleming demonstrate that a philosophic a...