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Fourteenth Amendment to the United States Constitution

1868 amendment addressing citizenship rights and civil and political liberties

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The amendment's first section includes the Citizenship Clause, Privileges or Immunities Clause, Due Process Clause, and Equal Protection Clause. The Citizenship Clause broadly defines citizenship, superseding the Supreme Court's decision in Dred Scott v. Sandford (1857), which held that Americans descended from African slaves could not become American citizens. The Privileges or Immunities Clause was interpreted in the Slaughter-House Cases (1873) as preventing states from impeding federal rights, such as the freedom of movement. The Due Process Clause builds on the Fifth Amendment to prohibit all levels of government from depriving people of life, liberty, or property without substantive and procedural due process. Additionally, the Due Process Clause supports the incorporation doctrine, by which portions of the Bill of Rights have been applied to the states. The Equal Protection Clause requires each state to provide equal protection under the law to all people, including non-citizens, within its jurisdiction.

The second section superseded the Three-fifths Compromise, apportioning the House of Representatives and Electoral College using each state's adult male population. In allowing states to abridge voting rights "for participation in rebellion, or other crime," this section approved felony disenfranchisement. The third section disqualifies federal and state candidates who "have engaged in insurrection or rebellion," but in Trump v. Anderson (2024), the Supreme Court left its application to Congress for federal elections and state governments for state elections. The fourth section affirms public debt authorized by Congress while declining to compensate slaveholders for emancipation. The fifth section provides congressional power of enforcement, but Congress's authority to regulate private conduct has shifted to the Commerce Clause, while the anti-commandeering doctrine restrains federal interference in state law.

Section 1: Citizenship and civil rights

Background

Section 1 of the Fourteenth Amendment formally defines United States citizenship and protects various civil rights from being abridged or denied by any state law or state action. In Shelley v. Kraemer (1948), the Supreme Court held that the Fourteenth Amendment's historical context of countering the discriminatory Black Codes of southern states must be used in its interpretation. Primarily written by Representative John Bingham, Section 1 is the most frequently litigated part of the amendment, and this amendment is the most frequently litigated part of the Constitution.

Citizenship Clause

The Citizenship Clause overruled the Supreme Court's Dred Scott decision that African Americans could not become citizens. The clause constitutionalized the Civil Rights Act of 1866's grant of citizenship to all born within the United States, except the children of foreign diplomats. Compared against European jus sanguinis laws that assign citizenship by one's parents, historians have framed the United States' Citizenship Clause as an extension of the Fourteenth Amendment's egalitarian principles.

Congress's debate over the Citizenship Clause shows explicit rejection of Senator Edgar Cowan's anti-Romani sentiment, affirming that birthright citizenship cannot be revoked from children born to disfavored ethnic minorities. Birthright citizenship was meant to repudiate the American Colonization Society's repatriation of freeborn people of color and emancipated slaves to Africa. In United States v. Wong Kim Ark (1898), the Supreme Court confirmed that children born in the United States receive birthright citizenship, regardless of whether their parents are non-citizen immigrants.

In Elk v. Wilkins (1884), the Supreme Court interpreted the Citizenship Clause as granting birthright citizenship to all born within the jurisdiction of the United States and allowing Congress to establish alternative pathways for naturalization. Consistent with the views of the clause's author, Senator Jacob M. Howard, the Supreme Court held that because Indian reservations are not under the federal government's jurisdiction, Native Americans born on such land are not entitled to birthright citizenship. The 1887 Dawes Act offered citizenship to Native Americans who accepted private property as part of cultural assimilation, while the 1924 Indian Citizenship Act offered citizenship to all Native Americans born within the nation's territorial limits.

In Mackenzie v. Hare (1915), the Supreme Court upheld the Expatriation Act of 1907, which dictated that all American women who voluntarily married a foreign alien renounced their American citizenship. Perez v. Brownell (1958) similarly held that Congress could designate voting in foreign elections or draft evasion as renunciations of citizenship. However, in Afroyim v. Rusk (1967) and Vance v. Terrazas (1980), the Supreme Court reversed itself, holding that renunciations of American citizenship must be formally expressed. In Rogers v. Bellei (1971), the Supreme Court distinguished between citizenship conferred by the Fourteenth Amendment and citizenship conferred by Article I, holding that a person who did not acquire citizenship by jus soli or by naturalization, but instead acquired citizenship at birth abroad through jus sanguinis, could later be involuntarily expatriated.

In January 2025, President Donald Trump issued Executive Order 14160 to deny birthright citizenship to children with parents of illegal or temporary immigration status. While this topic was not considered by the 39th Congress, enforcement of the executive order was blocked as unconstitutional by multiple federal judges. Furthermore, many of the freed slaves whose children were covered by the Citizenship Clause were illegal immigrants brought in violation of the 1807 Act Prohibiting Importation of Slaves. The executive order was challenged in court, and the Supreme Court struck down the order on June 30, 2026 in the case Trump v. Barbara.

Privileges or Immunities Clause

The Privileges or Immunities Clause was written to provide congressional power of enforcement to the similar Privileges and Immunities Clause of Article Four of the Constitution. In 1823, Justice Bushrod Washington decided Corfield v. Coryell, interpreting the latter clause as protecting the right to travel, seek habeas corpus, and hold property in multiple states, among other rights. In the Slaughter-House Cases (1873), the Supreme Court rejected arguments that the Privileges or Immunities Clause further incorporated the Bill of Rights against state governments or transferred police power to the federal government. In McDonald v. City of Chicago (2010) and Timbs v. Indiana (2019), Justice Clarence Thomas advocated moving the incorporation doctrine from substantive due process, which he called a 'legal fiction', to the Privileges or Immunities Clause.

Due Process Clause

The Due Process Clause of the Fourteenth Amendment explicitly applies the Fifth Amendment's similar clause to state governments. This reinforcement of due process rights was in response to the Fugitive Slave Act of 1850 allowing slave owners to recapture their fugitive slaves "without process" and rejecting the testimony of alleged fugitives. In protecting all people against arbitrary denial of life, liberty, or property, courts have recognized both procedural and substantive due process. Procedural due process deals with the processes for restraining life, liberty, or property, such as the right to be notified of a hearing by a neutral decision-maker. In comparison, substantive due process involves the government's justification for engaging in those processes.

In deciding whether legislation unconstitutionally infringes on one's liberty, most government acts are subject to rational basis review, under which the government must present a legitimate state interest and the law must be rationally related to advancing that interest. When the government infringes on fundamental rights, such as racial equality, strict scrutiny requires its actions to instead be narrowly tailored to address a compelling state interest.

The early 20th century has been referred to as the Lochner era for the Supreme Court's embrace of a freedom of contract in cases like Allgeyer v. Louisiana (1897) and Lochner v. New York (1905). While that freedom was ultimately curtailed in West Coast Hotel Co. v. Parrish (1937), those early cases recognized substantive due process rights within the Due Process Clause. For example, Meyer v. Nebraska (1923) and Pierce v. Society of Sisters (1925) struck down anti-immigrant state education laws as violations of substantive due process.

In 1890, future Supreme Court Justice Louis Brandeis and his law partner, Samuel D. Warren II, published "The Right to Privacy" in the Harvard Law Review. While the article only advocated for tort actions to protect one's privacy, the Supreme Court later elevated privacy to a fundamental right, protecting contraceptive sales in Griswold v. Connecticut (1965), consensual sex in Lawrence v. Texas (2003), and same-sex marriage in Obergefell v. Hodges under substantive due process. In Roe v. Wade (1973), the Supreme Court recognized a substantive due process right to abortion, but that holding was overturned in Dobbs v. Jackson Women's Health Organization (2022), which stated that "a right to abortion is not deeply rooted in the Nation's history and traditions."

Incorporation of the Bill of Rights

Prior to the Fourteenth Amendment, the Supreme Court held in Barron v. Baltimore (1833) that the Bill of Rights only restrained the federal government. However, in Chicago, Burlington & Quincy Railroad Co. v. City of Chicago (1897), the Supreme Court applied the Fifth Amendment's Takings Clause to the eminent domain power of state governments under the Due Process Clause, beginning an ongoing process of incorporation. Legal scholar Akhil Reed Amar has argued that while Congress intended the Fourteenth Amendment to reverse the Barron decision, Representative Bingham expected incorporation to rely on the Privileges or Immunities Clause. The Supreme Court has explicitly rejected incorporation of the Fifth Amendment's Grand Jury Clause and Seventh Amendment, and it has never addressed the Third Amendment.

Equal Protection Clause

The Equal Protection Clause was written to constitutionalize the anti-discrimination principles of the Civil Rights Act of 1866 and prevent enforcement of the southern states' Black Codes. In Strauder v. West Virginia (1880), the Supreme Court recognized exclusion of African Americans from West Virginian juries as an unconstitutional infringement of this clause, triggering the 1866 law's provision to remove the underlying case to federal court. In Yick Wo v. Hopkins (1886), the Supreme Court clarified that race-neutral laws administered in discriminatory ways were similarly unconstitutional.

Whereas the Privileges or Immunities Clause refers to citizens, this clause refers to all people within the jurisdiction of the United States. Accordingly, in Plyler v. Doe (1982), the Supreme Court prohibited state governments from restricting public education on the basis of a child's immigration status. In that decision, Justice William J. Brennan Jr. noted that in Wong Wing v. United States (1896), the Supreme Court had already recognized illegal immigrants as within American jurisdiction for the purposes of due process rights.

While the Fourteenth Amendment's Due Process Clause incorporates the Bill of Rights against state governments, the Fifth Amendment's similar clause has been used for reverse incorporation of the Equal Protection Clause against the federal government. In Bolling v. Sharpe (1954), the Supreme Court used this doctrine to prevent the federal government from maintaining segregated public schools in Washington, D.C.

While states can vary taxation by the taxpayer's profession or form of their property, the Equal Protection Clause restrains the government from engaging in discriminatory tax assessment. Additionally, in Metropolitan Life Insurance Co. v. Ward (1985), the Supreme Court treated the Equal Protection Clause as affirming the Dormant Commerce Clause doctrine against state protectionism. In Santa Clara County v. Southern Pacific Railroad Co. (1886), Supreme Court Reporter of Decisions Bancroft Davis affirmed corporate personhood in the decision's headnote without full discussion by the court. In Minneapolis & St. Louis Railway Co. v. Beckwith (1889), the Supreme Court fully embraced this treatment of businesses as people.

In Plessy v. Ferguson (1896), the Supreme Court held that racial segregation laws did not violate the Equal Protection Clause, and in Cumming v. Richmond County Board of Education (1899), it applied its "separate but equal" doctrine to uphold racial segregation in public schools. Through civil rights litigation, groups like the NAACP weakened this doctrine, culminating in Brown v. Board of Education (1954) holding segregated facilities to be inherently unequal. The ruling was met with "massive resistance" in southern states, leading state and federal courts to overturn many segregationist state laws.

The Supreme Court clarified in Hernandez v. Texas (1954) that the Equal Protection Clause applies to all racial groups. In Reed v. Reed (1971), the Supreme Court unanimously struck down an Idaho probate law favoring men in its first application of the Equal Protection Clause to sex discrimination. Responding to second-wave feminism, the Supreme Court ruled in Craig v. Boren (1976) that sex classifications would thereafter be subjected to intermediate scrutiny.

The Supreme Court ruled in Regents of the University of California v. Bakke (1978) that diverse student bodies were a compelling interest for universities while deeming racial quotas in public university admissions unconstitutional. In the 2003 companion cases Gratz v. Bollinger and Grutter v. Bollinger, the Court continued to accept race-conscious admissions while striking down a points-based system that quantified minority status. In Students for Fair Admissions v. Harvard (2023), the Supreme Court effectively overturned that precedent, declaring affirmative action unconstitutional in private universities that accept federal funds and all public universities except military academies.

With the 1964 cases Wesberry v. Sanders and Reynolds v. Sims, the Supreme Court embraced a "one man, one vote" approach to apportioning congressional districts. While racial gerrymandering was held illegal in Shaw v. Reno (1993), partisan gerrymandering was deemed a political question in Rucho v. Common Cause (2019). In Bush v. Gore (2000), the Supreme Court required states to impose uniform ballot counting procedures across their counties under the Equal Protection Clause. Deeming a complete recount of the 2000 presidential election in Florida impractical, the Supreme Court accepted the Florida Secretary of State's prior vote certification, allowing George W. Bush to win the Electoral College.

State actor doctrine

The Eleventh Amendment provides state governments with sovereign immunity from federal lawsuits brought by citizens of other states, and in Hans v. Louisiana (1890), the Supreme Court held that it implies immunity from all lawsuits brought by private parties. In Fitzpatrick v. Bitzer (1976), the Supreme Court determined that Section 5 of the Fourteenth Amendment's congressional power of enforcement allows the federal government to limit state sovereign immunity.

Furthermore, in Ex parte Young (1908), the Supreme Court held that private individuals could seek federal injunctions against state officials to prevent enforcement of unconstitutional laws, reasoning that unconstitutional conduct can never be a protected state action. Similarly, in Shelley v. Kraemer (1948), the Supreme Court held that while the federal government cannot prevent private parties from establishing racially discriminatory housing covenants, state and federal courts cannot enforce them.

In cases like Jackson v. Metropolitan Edison Co. (1974) and Flagg Bros., Inc. v. Brooks (1978), the Supreme Court clarified that state laws do not transform regulated businesses into state actors. Thus, private companies are free to engage in conduct that would be unconstitutional for state governments to pursue, though the federal government can prevent discriminatory private conduct under its Commerce Clause authority, and state governments may further regulate business operations.

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