Fourteenth Amendment

Originalist note

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No 39th Congress ratification-history source (the 1866 congressional debates, the Civil Rights Act of 1866's legislative record) is yet ingested in this wiki to test the doctrine below against Section 1's 1868 original public meaning directly. The doctrine sections below record how the Supreme Court has construed the text over time, flagging internal contests (e.g., Slaughter-House's narrow Privileges or Immunities reading versus its modern-doctrine departure in Saenz v. Roe, and the McDonald v. City of Chicago Thomas concurrence's originalist critique of Slaughter-House itself) rather than resolving them against a ratification-era baseline this wiki does not yet hold.

Modern doctrine (Annotated Constitution)

Overview

The Reconstruction Amendments — Thirteenth (abolishing slavery), Fourteenth (defining and granting national citizenship rights), and Fifteenth (forbidding racial discrimination in elections) — worked "a fundamental shift in the relationship between the Federal Government and the states" in the wake of the Civil War. The Fourteenth Amendment was "the most controversial and far-reaching" of the three.

State Action Doctrine

By its terms, the Amendment "limits discrimination only by governmental entities, not by private parties": "That Amendment erects no shield against merely private conduct, however discriminatory or wrongful." Civil Rights Cases, 109 U.S. 3, 11 (1883). The doctrine governs application of the Equal Protection and Due Process Clauses to the states, and of Congress's Section 5 enforcement power; it is treated in full, across both its Fourteenth Amendment foundation and First Amendment application, at State Action Doctrine. Key holdings include Shelley v. Kraemer (1948) (judicial enforcement of a private racially restrictive covenant is state action) and Jackson v. Metropolitan Edison Co. (1974) (the "close nexus" test for regulated private entities).

Citizenship (Amdt14.S1.1)

The Citizenship Clause was a direct repudiation of Dred Scott v. Sandford (1857), in which Chief Justice Taney held Black Americans could never be "citizens" of the United States. Congress first reversed that holding in Section 1 of the Civil Rights Act of 1866, then in the Fourteenth Amendment itself, "restor[ing] the traditional precepts of citizenship by birth." United States v. Wong Kim Ark, 169 U.S. 649, 688 (1898).

Wong Kim Ark (1898) held that a child born in the United States to alien parents ineligible for naturalization is nevertheless a citizen at birth; the "subject to the jurisdiction thereof" condition excludes only children of foreign diplomats, children of alien enemies in hostile occupation, and (per Elk v. Wilkins, 112 U.S. 94, 99 (1884)) children of tribal members subject to tribal law. Corporations are not citizens for purposes of the Clause. Insurance Co. v. New Orleans, 13 F. Cas. 67 (C.C.D. La. 1870).

On loss of citizenship, Afroyim v. Rusk (1967) held the Government has no power to expatriate a citizen involuntarily, overruling Perez v. Brownell (1958). Rogers v. Bellei (1971) limited Afroyim to those "born or naturalized in the United States": a person who acquires citizenship by statute through foreign birth to a U.S.-citizen parent could not claim the first sentence's protection, so Congress could impose a "reasonable and non-arbitrary condition subsequent" on the continued retention of that citizenship.

Privileges or Immunities (Amdt14.S1.2)

The Privileges or Immunities Clause was rendered "a practical nullity" within five years of ratification by Slaughter-House Cases (1873), which confined it to a narrow list of rights of national citizenship — access to the seat of government and seaports, protection abroad, assembly, habeas corpus, navigable waters, and treaty rights — leaving the broader civil rights of state citizenship to state governments. Twining v. New Jersey, 211 U.S. 78, 97 (1908), later recognized the right to travel between states, to petition Congress, and to vote for federal officers as additional privileges of national citizenship. A brief attempt to broaden the Clause in Colgate v. Harvey, 296 U.S. 404 (1935), was overruled five years later in Madden v. Kentucky, 309 U.S. 83, 93 (1940).

In Oyama v. California, 332 U.S. 633, 640 (1948), the Court held in a single sentence that a state Alien Land Law forfeiting property purchased in a native-born citizen's name deprived him "of his privileges as an American citizen." More significantly, Saenz v. Roe (1999) revived the Clause to strike a durational-residency welfare restriction, holding new state residents have a right "to be treated the same as other state citizens" — though the opinion's reach beyond that specific context is contested.

Due Process Generally (Amdt14.S1.3)

The Fourteenth Amendment's Due Process Clause bars a state from depriving "any person of life, liberty, or property, without due process of law." The Court applies the Clause in two main ways: it guarantees procedural due process — the government must follow certain procedures before depriving a person of a protected interest, treated in full at Procedural Due Process (Fourteenth Amendment) — and it guarantees substantive due process, protecting certain fundamental rights the government may not infringe regardless of the procedures it follows (Amdt14.S1.6, not yet ingested). Separately, the Court has construed the Clause to render most of the Bill of Rights binding on the states — the incorporation doctrine treated at Selective Incorporation. Due process and incorporation together have "formed the basis for many high-profile Supreme Court cases": among them West Virginia State Bd. of Educ. v. Barnette (1943), Gideon v. Wainwright (1963), and Griswold v. Connecticut (1965).

The Clause's protection extends to all natural persons regardless of race, color, or citizenship. Corporations may raise property-interest due process claims — the Court accepted this as early as the 1870s Granger Cases and confirmed it directly in Smyth v. Ames (1898) — but the Court has held that the liberty interest belongs to natural persons only, with a narrow exception recognized for a corporation's liberty of the press (Grosjean v. American Press Co., 1936). A public officer's mere official interest in enforcing a law ordinarily gives no standing to challenge that law's constitutionality, though a state officer resisting an "endeavor to prevent the enforcement of statutes" they administer may invoke the Clause even without private damage (Coleman v. Miller, 1939); the converse does not hold, and an official cannot use the Clause to avoid enforcing a law they believe unconstitutional.

Incorporation of the Bill of Rights (Amdt14.S1.4)

Incorporation doctrine — whether, and how, the Fourteenth Amendment's Due Process Clause makes Bill of Rights guarantees binding on the states — is treated in full at Selective Incorporation, including the doctrine's rejected total-incorporation and no-incorporation extremes, the modern "fundamental to our scheme of ordered liberty and deeply rooted in this Nation's history and tradition" test, and the current provision-by-provision incorporation table.

Procedural Due Process (Amdt14.S1.5)

The Fourteenth Amendment imposes the same procedural due process requirements on the states that the Fifth Amendment imposes on the federal government: notice and an opportunity for a hearing before an impartial tribunal, once a protected liberty or property interest is at stake. In civil cases — the modern liberty- and property-interest tests, the Mathews v. Eldridge balancing test, notice, hearing, impartial-decision-maker, and additional procedural requirements, state authority to regulate procedure, statutes of limitations, burdens of proof, state taxation, and parental-rights/protective-commitment contexts — this doctrine is treated in full at Procedural Due Process (Fourteenth Amendment). In criminal cases, the Clause operates on a separate "fundamental fairness" track alongside Selective Incorporation; that doctrine — impartial judge and jury, pre-trial identification, plea bargaining, guilt beyond a reasonable doubt, evidentiary disclosure (Brady v. Maryland), competency for trial, juvenile offenders' rights (In re Gault), and post-trial due process for sentencing, appeals, parole/probation (Morrissey v. Brewer), and prisoners (Wolff v. McDonnell) — is treated in full at Procedural Due Process in Criminal Cases (Fourteenth Amendment).

Substantive Due Process (Amdt14.S1.6)

Separately from procedural due process, the Fourteenth Amendment's Due Process Clause protects certain fundamental rights from state interference regardless of the procedures the state follows — spanning a Lochner-era line of economic substantive due process (Amdt14.S1.6.2) that the Court abandoned by 1937, and a noneconomic line (Amdt14.S1.6.3) covering privacy, family autonomy, and marriage (Loving v. Virginia, Obergefell v. Hodges), abortion (Amdt14.S1.6.4 — Roe v. Wade, Planned Parenthood v. Casey, Dobbs v. Jackson Women's Health Organization), and medical care (Amdt14.S1.6.5 — right to refuse treatment, physician-assisted death, civil commitment) that remains contested and unsettled as to its methodology and scope. This doctrine is treated in full at Substantive Due Process (Fourteenth Amendment).

Due Process Limits on State Action — Personal Jurisdiction (Amdt14.S1.7.1)

Separately from the procedural and substantive due process lines above, the Fourteenth Amendment's Due Process Clause limits state courts' power to render judgments affecting nonresident defendants who lack a sufficient connection to the forum state. This doctrine — Pennoyer v. Neff's founding territorial "physical presence" test, International Shoe's minimum-contacts test, the modern specific/general jurisdiction framework, the stream-of-commerce dispute, Shaffer v. Heitner's extension of the minimum-contacts test to in rem and quasi in rem jurisdiction, and the reasonableness test — is treated in full at Personal Jurisdiction and Due Process (Fourteenth Amendment).

Due Process Limits on State Action — State Taxation (Amdt14.S1.7.2-1.7.3)

The Due Process Clause also limits a state's jurisdiction to tax persons and property lacking a sufficient connection to the state, though it does not "restrain or cripple the taxing power of the states" generally. This doctrine — the jurisdiction-to-tax inquiry and its overlap with the Dormant Commerce Clause (Quill Corp. v. North Dakota, South Dakota v. Wayfair, Inc.), the domiciliary-situs rules for real property, tangible personalty, and intangible personalty, multi-state transfer (inheritance, estate, gift) taxation, and corporate privilege, income, and insurance taxes — is treated in full at State Tax Jurisdiction (Fourteenth Amendment). The same section also applies the Void for Vagueness Doctrine to state and local criminal statutes.

Equal Protection (Amdt14.S1.8)

Section 1's final clause bars a state from denying "any person within its jurisdiction the equal protection of the laws." Most classifications receive rational basis review, asking only whether the classification is rationally related to a legitimate state interest; race is the paradigmatic "suspect" classification requiring strict scrutiny, a standard Adarand Constructors v. Pena (1995) held applies uniformly regardless of whether the classification burdens or purports to benefit a racial group. This doctrine — race-based classifications and strict scrutiny; rational basis review generally, including the person/jurisdiction scope of the Clause and police-power/tax classifications; school desegregation, political process, jury selection, and race-conscious remedies; discriminatory intent and voting rights/redistricting; alienage, illegitimacy, and sex-based classifications; sexual orientation classifications (Sexual Orientation Classification Doctrine); wealth-based classifications (Wealth-Based Classification Doctrine); and the fundamental-rights branch, including interstate travel and durational residency (Fundamental Rights Equal Protection Doctrine) — is treated in full at Equal Protection Clause and its derived doctrine pages. Section 1 Equal Protection doctrine is fully ingested through Amdt14.S1.8.13.3.

Apportionment of Representation (Amdt14.S2)

Section 2 replaced the original Constitution's three-fifths compromise: with slavery abolished, formerly enslaved persons would be counted in full for congressional apportionment, raising the prospect that the readmitted Southern states would gain seats and electoral votes without extending the vote to the freedmen who now counted toward that gain. Section 2's compromise reduces a state's basis of representation in proportion to the number of male citizens twenty-one or older denied or abridged the vote, "except for participation in rebellion, or other crime." No serious congressional effort was ever made to enforce this representation-reduction penalty, and the one judicial attempt to force its application was rebuffed (Saunders v. Wilkins, 1945). With the Fifteenth, Nineteenth, and Twenty-Sixth Amendments and federal voting-rights legislation superseding the practical need for Section 2's penalty, the provision is, in the source's own description, "little more than a historical curiosity" as an enforcement mechanism.

Section 2 nonetheless does independent doctrinal work through its crime exception: Richardson v. Ramirez (1974) read the exception as an implied constitutional approval of state laws disqualifying convicted felons from voting even after they complete their sentences, holding the Equal Protection Clause simply inapplicable to that category of disenfranchisement rather than subjecting it to ordinary equal protection balancing.

Disqualification from Holding Office (Amdt14.S3)

Section 3 bars a person who previously took an oath to support the Constitution as a federal or state officer from serving as Senator, Representative, presidential elector, or any civil or military officer if that person "engaged in insurrection or rebellion" against the United States or gave "aid or comfort" to its enemies — subject to removal of the disability by a two-thirds vote of each House of Congress. Congress exercised the removal power for named individuals at various points after ratification; a blanket 1872 act removed the disability from all persons except sitting members of the Thirty-sixth and Thirty-seventh Congresses, judicial and military/naval officers, department heads, and foreign ministers, and a further 1898 act removed all disabilities "heretofore" incurred. Because legislation was necessary to give the disqualification prospective effect, persons who held office before the Amendment's promulgation continued lawfully in office until removal was granted (Griffin's Case, 1869), and a person who took part in the Civil War but received a presidential pardon before the Amendment's adoption was not barred from later holding federal office (18 Op. Att'y Gen. 149, 1885).

Section 3 remained rarely applied until 2024. In its only decision specifically interpreting the clause, Trump v. Anderson (2024), the Supreme Court held unanimously, per curiam, that states cannot enforce Section 3 against candidates for federal office: "States have no power under the Constitution to enforce Section 3 with respect to federal offices, especially the President." The Court reasoned that Section 5's grant of enforcement power to Congress is exclusive as to federal officeholders and candidates — "[t]he terms of the [Fourteenth] Amendment speak only to enforcement by Congress, which enjoys power to enforce the Amendment through legislation pursuant to Section 5" — while states retain concurrent authority to enforce Section 3 against candidates for state office. The decision reversed the Colorado Supreme Court, which had held former President Donald J. Trump disqualified under Section 3 for having "engaged in insurrection" and barred from Colorado's 2024 presidential primary ballot.

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The wiki's ingested source does not construe "engaged in insurrection or rebellion" in any depth beyond an 1871 lower-court reference (United States v. Powell) and the Colorado Supreme Court's now-reversed factual finding in Anderson v. Griswold. Trump v. Anderson resolves who may enforce Section 3 against a federal candidate but does not itself define what conduct constitutes "insurrection" for Section 3 purposes.

Public Debt (Amdt14.S4)

Section 4's public-debt guarantee grew out of the 39th Congress's Joint Committee on Reconstruction, which in late 1865 investigated Southern sentiment toward repudiating federal war debt once former Confederate states resumed congressional representation — witnesses reported "an expectation that compensation will be made for slaves emancipated and property destroyed during the war." During Senate consideration, Senator Benjamin Wade proposed placing Union war debt "under the guardianship of the Constitution of the United States, so that a Congress cannot repudiate it," and the language evolved through several drafts before the 39th Congress settled on the final text: the public debt's validity "shall not be questioned," while debts incurred "in aid of insurrection or rebellion" or for the "loss or emancipation of any slave" are void.

Section 4 declares the validity of the public debt "authorized by law" — including Civil War pension and bounty debts — "shall not be questioned," while voiding any debt or claim incurred in aid of insurrection or rebellion, or for the loss or emancipation of a slave. Though the provision "was undoubtedly inspired by the desire to put beyond question the obligations of the government issued during the Civil War," its language reaches more broadly: the "validity of the public debt" clause has been read to embrace "whatever concerns the integrity of the public obligations," applying to government bonds issued after, as well as before, the Amendment's adoption (Perry v. United States, 1935, invalidating a Joint Resolution's attempt to override a Fourth Liberty Loan Gold Bond's gold-clause obligation as going "beyond the congressional power"). Perry remains, as of this wiki's sources, the only construction of the Public Debt Clause to appear in a controlling opinion of the Court; no majority opinion since 1935 has endorsed, repudiated, or otherwise examined its holding.

Enforcement (Amdt14.S5)

Section 5 authorizes Congress "to enforce, by appropriate legislation, the provisions of this article."

Pre-modern doctrine — who Congress may regulate (Amdt14.S5.1-5.3). In the aftermath of the Civil War, Congress enacted seven statutes implementing the Thirteenth, Fourteenth, and Fifteenth Amendments; the Supreme Court declared unconstitutional or rendered ineffective practically all of the general civil-rights statutes among them, and with rare exceptions no cases were brought under the remaining ones until decades later. Congress's discretion to authorize removal of state-court civil-rights cases to federal court and to impose criminal and civil liability on state officials and their private associates who violate protected rights under color of law presents no constitutional-foundation problem. But the Civil Rights Cases (1883) held Congress's Section 5 power corrective rather than freestanding: because Section 1 prohibits only state action, Section 5's power to enforce Section 1 "by appropriate legislation" is similarly limited, and Congress may not "create a code of municipal law for the regulation of private rights." United States v. Cruikshank (1876) and United States v. Harris (1883) reached the same conclusion in prosecutions of private individuals for violence against African Americans; Cruikshank did, however, recognize a small category of federal rights — the right to vote in federal elections, the right to federal protection in federal custody, the right to inform federal officials of federal-law violations, and the right of interstate travel — that Congress could protect against purely private interference as incidents of national citizenship.

The scope of that private-interference power resurfaced when the Court divided 4-4 in United States v. Williams (1951) over whether a predecessor statute's "right or privilege secured . . . by the Constitution" reached Fourteenth Amendment rights or only rights Congress could "beyond doubt constitutionally secure against interference by private individuals." United States v. Price and United States v. Guest (both 1966) found sufficient state action in the cases before them and so did not need to resolve the private-action question, but Justice William Brennan, joined by a majority of the Justices in a lengthy statement appended to Guest, argued Congress's Section 5 power was broader than the majority's opinion implied: "[a]lthough the Fourteenth Amendment itself . . . 'speaks to the State or to those acting under the color of its authority,' legislation protecting rights created by that Amendment . . . need not be confined to punishing conspiracies in which state officers participate," since "Section 5 authorizes Congress to make laws that it concludes are reasonably necessary to protect a right created by and arising under that Amendment." The Court ultimately rejected this expanded reading in United States v. Morrison (2000), reaffirming the state-action requirement, dismissing the Guest dicta, and holding that a federal civil remedy for gender-motivated violence exceeded Section 5 because it targeted private individuals rather than any state or state actor.

A second, parallel debate concerned how much deference courts owe Congress's own judgment about what Section 5 legislation is "appropriate." In the Civil Rights Cases, the Court described Section 5 legislation as "corrective legislation" — counteracting state laws Section 1 itself forbids — leaving the judiciary the final word on whether a state law was impermissible. Justice Brennan, this time writing for the Court in Katzenbach v. Morgan (1966), effectively displaced that limiting view: upholding a Voting Rights Act provision barring English-literacy voting tests for certain Puerto Rican migrants even though the Court had previously sustained English-literacy tests generally, the Court reasoned Congress might have concluded, on grounds the judiciary had not considered, that the state requirement was discriminatory in purpose and effect, and that it was "Congress's prerogative to weigh" the considerations bearing on that judgment. Justice John Harlan's dissent warned this reading let Congress "define the substantive scope of the Amendment" and, by parity of reasoning, dilute as well as expand it; Justice Brennan responded that Section 5 "grants Congress no power to restrict, abrogate, or dilute" the Amendment's guarantees, only to enforce them. Morgan's "ratchet theory" fractured badly within a few years: in Oregon v. Mitchell (1970), only four Justices accepted it in full, one Justice rejected it entirely, and others confined it to racial classifications or to an alternative "necessary and proper" rationale, in a decision that upheld Congress's power to lower the voting age in federal elections but not in state and local ones.

Modern doctrine (Amdt14.S5.4). The modern test, from City of Boerne v. Flores (1997), requires "a congruence and proportionality" between the means Congress adopts and the constitutional injury it targets, resolving the Morgan/Guest debates in favor of a judicially policed, remedial-and-preventive conception of Section 5 rather than a Congress-led "ratchet." Section 5 is remedial and preventive, not a license for Congress to redefine the Amendment's substance. Boerne struck down the Religious Freedom Restoration Act because there was no history of religious persecution comparable to "the pervasive suppression of the African American vote in the South that led to the passage of the Voting Rights Act."

Section 5 is one of the few grounds on which Congress may abrogate state sovereign immunity under the Eleventh Amendment, since Section 5 post-dates and qualifies it; ordinary Article I legislation cannot. Applying Boerne, the Court has required a substantial documented legislative record of unconstitutional state conduct before sustaining Section 5 legislation targeting conduct subject only to rational-basis review: it rejected Eleventh Amendment abrogation for patent-infringement suits in Florida Prepaid Postsecondary Educ. Expense Bd. v. College Savings Bank, 527 U.S. 627 (1999), for age discrimination under the ADEA in Kimel v. Florida Bd. of Regents, 528 U.S. 62 (2000), and for disability discrimination under ADA Title I in Board of Trustees of Univ. of Ala. v. Garrett, 531 U.S. 356 (2001). Where the underlying classification instead receives heightened scrutiny, a thinner record has sufficed: the Court sustained the Family and Medical Leave Act's family-care leave provision as a "congruent and proportional" response to historic gender-based stereotyping in Nevada Dep't of Human Resources v. Hibbs, 538 U.S. 721 (2003), though a plurality declined to extend that reasoning to the Act's "self care" leave provision in Coleman v. Court of Appeals of Md., 566 U.S. ___ (2012). Tennessee v. Lane, 541 U.S. 509 (2004), upheld ADA Title II's application to court-access cases because access to courts is itself subject to heightened due-process scrutiny. Section 5 power is strongest where a state's own conduct independently violates the Fourteenth Amendment: United States v. Georgia, 546 U.S. 151 (2006), unanimously upheld ADA Title II damages liability to that extent, without applying the congruence-and-proportionality test at all.