The debate over which philosophy influenced the Constitution is long standing and continues to this day. I propose that natural rights arguments influenced the Constitution and that by understanding those influences, the courts possess a strong guide for understanding new issues that lack clear guidance from the Constitution’s text. To establish natural rights as the philosophy behind the Constitution, I first analyze Locke’s Second Treatise on Government and then scholarly works about the philosophical influences on the Constitution. From these works, I establish the central natural rights threads of equality between people, the purpose of government, protection from government overreach, and the right to property in one’s person. Then I s...