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Judicial Interpretation

PLA 2880Activity 6

Why it Matters

In Heller, Justice Scalia and Justice Stevens read the same one-sentence amendment, worked through the same founding-era history, and reached opposite results. Neither was confused about the words. They disagreed about what a constitution is, and that disagreement is what split the Court. Once you can name the method behind a holding, a Supreme Court opinion stops being a verdict handed down and becomes an argument you can weigh.

Current Context

In June 2026 the Court decided Wolford v. Lopez (opens in a new tab) and struck down a Hawaii gun law. The law barred concealed carry permit holders from bringing handguns onto private property open to the public without the owner’s consent. Justice Alito’s majority and Justice Kagan’s dissent worked from the same colonial and founding-era laws and drew opposite conclusions, a split the National Constitution Center’s summary (opens in a new tab) sets out in the Justices’ own words. Five days later the Court agreed to hear a consolidated challenge to assault weapons bans next term. One historical record yielded two readings and a 6-3 judgment.

Key Concepts

Originalism

A method of constitutional interpretation that applies the original public meaning of the text as it was understood at ratification. Originalists look to founding-era dictionaries, debates, and practices to fix a provision’s meaning, and they treat that meaning as binding until the text is formally amended. Justice Scalia’s majority in Heller is a leading example.

Living Constitutionalism

An interpretive philosophy that treats the Constitution as a document whose meaning develops over time. On this view, broad phrases like “liberty” and “equal protection” were written to reach conditions the founders could not foresee, so courts read them in light of evolving social understanding. Justice Kennedy’s majority in Obergefell reflects this approach.

Stare Decisis

The principle that courts follow precedent, so the law stays consistent from one case to the next. It is not absolute: the Court can overturn a decision it concludes was wrong or has become unworkable. That escape hatch is why an argument about method so often turns into an argument about when precedent should yield.

Majority Opinion

The Court’s ruling, joined by more than half of the participating justices. It carries the reasoning and the rule that binds every lower court. When you want to know what the law now is, this is the opinion that supplies it.

Dissenting Opinion

An opinion by one or more justices who disagree with the majority’s result. A dissent says why its authors think the majority erred, and it often speaks past them to future courts, because more than one dissent has later become the law. Read it beside the majority and you can see where the interpretive fault line runs.

Concurring Opinion

An opinion by a justice who agrees with the majority’s result but gets there by different reasoning. A concurrence may offer another legal path, or press a point the majority left thin. Justice Thomas took the first route in McDonald, grounding the right in the Privileges or Immunities Clause instead of substantive due process.

Resources

What to Do

You will work through three cases, District of Columbia v. Heller, McDonald v. City of Chicago, and Obergefell v. Hodges, reading for method rather than doctrine. Across the three, read at least one majority opinion, one dissent, and one concurrence. You do not have to read every word, but you do have to read closely enough to hear how each justice reasons. The AI prompts help you think, and they do not read the opinions for you. Activity 7 returns to McDonald for incorporation, and Activity 9 returns to Obergefell for the substantive law.

Part 1: Read the Opinions

Start with Heller. Read Justice Scalia’s majority for its originalist reasoning, then Justice Stevens’s dissent for the contrasting approach. In McDonald, the majority shows how a right gets incorporated against the states, and Justice Thomas’s concurrence takes a different route to the same result through the Privileges or Immunities Clause. Obergefell gives you Justice Kennedy’s living-constitutionalist method in the majority and Justice Scalia’s dissent, which attacks it on originalist and judicial-restraint grounds. Take notes on how each justice reasons rather than on the jargon: which words they lean on, what history they cite, how they describe the Court’s job. For a fourth read, skim Ramos v. Louisiana, where the majority and the separate opinions argue openly about when precedent should fall.

Part 2: Use the AI Prompts

Run the Interpretation Essayist first, to build a working account of originalism and living constitutionalism before or alongside your reading. Then take one of the three cases to the Case Philosophy Analyzer and see whether its classification of each opinion matches the notes you took in Part 1. The Cross-Philosophy Critic turns each framework against a case it would normally endorse, which is the sharper test of whether you understand the method or only the outcome. Every output here is a draft to verify. Check any quotation the model attributes to a justice against the opinion itself.

Part 3: Write Your Reflection (400–600 words)

Explain what you learned about how justices interpret the Constitution, comparing the majority, dissenting, and concurring opinions across the three cases. Then take a position of your own: should the Constitution be read as fixed or as evolving, and should courts play a limited or an active role? Back your view with one specific example from the cases. Note anywhere the AI’s analysis needed correcting against what you found in the opinions themselves.

Include one AI chat link with a 1–2 sentence explanation of what the conversation shows and why you chose to share it.

Suggested AI Prompts

Use these prompts as a starting point, then adjust them to fit your goal. Strong prompting develops through trial, revision, and testing. It’s a foundational skill that grows into more advanced AI work such as context engineering and agent-based workflows.

The Interpretation Essayist

Write a thorough, academic essay that helps a college student in a constitutional law course understand how judicial interpretation shapes U.S. Supreme Court decisions. Focus on how interpretive methods drive constitutional reasoning, with particular attention to the two main approaches, originalism and living constitutionalism. Define and contrast these frameworks using appropriate constitutional law terminology, and illustrate how each has guided the Court’s analysis in key cases throughout history. Include discussion of how majority, concurring, and dissenting opinions can each reflect a different interpretive philosophy. Analyze the broader implications of these methods for legal predictability, social change, and the evolving role of the judiciary. Keep the writing formal, clear, and accessible to undergraduates, avoiding oversimplification while maintaining academic rigor, and structure the response as a coherent multi-paragraph essay of at least 1200 words. Where you attribute a position to a specific justice or case, name it precisely so I can verify it.

Setting the audience, the length, and the terminology up front is constraint setting, and it is what gets you usable academic prose instead of a survey. The closing line, which demands named attributions, turns a broad explainer into something you can fact-check case by case.

The Case Philosophy Analyzer

You are a constitutional law tutor who analyzes any U.S. Supreme Court case through the lens of judicial interpretation. Begin by asking me for the name of a case. Once I provide it, generate a detailed, academic-style analysis evaluating whether the Court’s reasoning reflects originalism, living constitutionalism, or neither. Define both interpretive methods using appropriate constitutional law terminology, then assess how the majority, concurring, and dissenting opinions each align with those frameworks. If the case does not clearly embody either philosophy, explain why rather than forcing it into a category, and account for any complexity or ambiguity in the Court’s reasoning. Write in a formal, accessible style suited to undergraduate constitutional law students, and tell me directly if you are uncertain about how a particular opinion should be classified.

Role assignment is the move here: telling the model what it is, rather than describing what it will do, holds its behavior steadier across a long answer. The permission to answer “neither” and to flag uncertainty matters as much, because a model will sort any case into a tidy box before it will say the case does not fit one.

The Cross-Philosophy Critic

You are a constitutional law professor running a role-reversal exercise. First, critique Justice Kennedy’s majority opinion in Obergefell v. Hodges from a committed originalist standpoint, laying out the strongest originalist objections to its method and result. Then critique Justice Scalia’s majority opinion in District of Columbia v. Heller from a committed living-constitutionalist standpoint, laying out the strongest objections that approach would raise. Argue each critique in good faith rather than knocking down a weak version. When you quote or paraphrase either opinion, mark clearly which it is, and note that I will check every quotation against the actual opinion text, so quote directly only when you are confident of the wording and label anything reconstructed from memory as a paraphrase to verify.

Red-teaming, turned on yourself: pushing each framework against a case it would normally support, and asking the model to steelman both, tests whether you hold the philosophy or only the result. Separating quotation from paraphrase targets a real failure, because models produce confident “quotations” no justice ever wrote, and saying in advance that you will check makes the flagging honest.

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