Constitutional Law
Rights, liberties, and government powers under the U.S. Constitution.
Overview
Constitutional law is the body of law that defines the structure of the United States government, the powers granted to its branches, and the fundamental rights guaranteed to individuals. Rooted in the Constitution ratified in 1788 and its 27 amendments, this area of law addresses questions of federalism, separation of powers, due process, equal protection, and individual liberties.
The Bill of Rights — the first ten amendments — enumerates core freedoms including speech, religion, the press, assembly, the right to bear arms, protection against unreasonable searches, and the right to a fair trial. The Fourteenth Amendment, ratified after the Civil War, extended due process and equal protection guarantees to state governments through the doctrine of incorporation.
Constitutional law is primarily developed through judicial review — the power of courts to invalidate government actions that violate the Constitution. Since Marbury v. Madison (1803), the Supreme Court has served as the ultimate arbiter of constitutional meaning, shaping American law on issues from segregation to free speech to privacy rights.
Key Statutes
U.S. Constitution
Art. I–VII, Amendments I–XXVII
The supreme law of the United States establishing the framework of government and fundamental rights.
Civil Rights Act of 1964
42 U.S.C. § 2000e et seq.
Landmark legislation prohibiting discrimination based on race, color, religion, sex, or national origin.
Voting Rights Act of 1965
52 U.S.C. § 10301 et seq.
Prohibits racial discrimination in voting and established federal oversight of elections in jurisdictions with histories of discrimination.
Religious Freedom Restoration Act
42 U.S.C. § 2000bb
Provides that the government shall not substantially burden a person's exercise of religion unless it demonstrates a compelling interest.
Key Cases
Marbury v. Madison
5 U.S. 137 (1803)
Established the principle of judicial review, empowering courts to strike down laws that violate the Constitution.
Brown v. Board of Education
347 U.S. 483 (1954)
Held that racial segregation in public schools violates the Equal Protection Clause of the Fourteenth Amendment.
New York Times v. Sullivan
376 U.S. 254 (1964)
Established the 'actual malice' standard for defamation claims by public officials, strengthening press freedom.
Obergefell v. Hodges
576 U.S. 644 (2015)
Held that same-sex couples have a constitutional right to marry under the Fourteenth Amendment.
Citizens United v. FEC
558 U.S. 310 (2010)
Held that the First Amendment prohibits the government from restricting independent political expenditures by corporations and unions.
Key Regulations
DOJ Guidelines on Constitutional Policing
Department of Justice
Federal guidance on law enforcement practices that comply with constitutional standards.
EEOC Enforcement Guidance
Equal Employment Opportunity Commission
Interpretive guidance on constitutional and statutory protections against workplace discrimination.
Common Forms
Frequently Asked Questions
What is judicial review?
Judicial review is the power of courts to examine government actions and laws and to invalidate those that violate the Constitution. This power was established by the Supreme Court in Marbury v. Madison (1803) and is the foundation of constitutional law enforcement.
Does the Constitution apply to private companies?
Generally no. The Constitution restricts government action, not private conduct. However, some amendments (like the 13th Amendment banning slavery) apply to private actors, and statutes like the Civil Rights Act extend constitutional principles to private businesses.
What is the incorporation doctrine?
Incorporation is the legal doctrine through which the Bill of Rights has been applied to state and local governments via the Due Process Clause of the Fourteenth Amendment. Most but not all Bill of Rights protections have been 'incorporated' against the states.
Can constitutional rights be limited?
Yes. Most constitutional rights are not absolute. Courts apply varying levels of scrutiny — strict, intermediate, or rational basis — to determine whether government restrictions on rights are permissible. For example, free speech can be limited in cases of true threats, incitement, or obscenity.
Recent Developments
Recent Supreme Court terms have seen significant constitutional decisions on issues including the scope of the Second Amendment in New York State Rifle & Pistol Association v. Bruen (2022), the reversal of Roe v. Wade in Dobbs v. Jackson Women's Health Organization (2022), and ongoing cases regarding the administrative state, free speech on social media platforms, and presidential immunity. The Court continues to grapple with how constitutional principles apply to emerging technologies and evolving social norms.
State Variations
Every state has its own constitution, and many state constitutions provide broader protections than the federal Constitution. For example, some state constitutions explicitly protect privacy rights, environmental rights, or the right to education. State courts can interpret their constitutions independently, creating a patchwork of rights that varies by jurisdiction.