The Fourteenth Amendment

All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside… — U.S. Const. amend. XIV

The Fourteenth Amendment is one of the most consequential additions to the Constitution. Ratified in 1868, it reshaped the relationship between the individual, the states, and the federal government. Its first section defines citizenship and places substantive limits on state power. Its second section addresses representation and ties it directly to population.

Both remain central to current debates.

Section 1 begins with a clear rule: citizenship attaches at birth or through naturalization. That principle, commonly referred to as birthright citizenship, was before the Supreme Court on April 1. The case asks whether an executive order can narrow that definition by excluding certain children born in the United States based on the status of their parents.

The Court has addressed this question before. In United States v. Wong Kim Ark (1898), it held that a child born in the United States to non-citizen parents is a citizen under the Fourteenth Amendment, reaffirming that the place of birth, not the status of the parents, controls in most circumstances.

During argument this week, the justices focused less on policy and more on structure. Several questioned whether the executive branch can redefine citizenship at all, emphasizing that the Constitution - not shifting policy concerns - supplies the rule. Chief Justice Roberts pushed back on the government’s reliance on narrow historical exceptions, noting the difficulty of extending those limited categories to broader groups. Justice Jackson pressed on how such a rule would operate in practice, asking how citizenship determinations would be made in real time. (Chicago Sun-Times)

Across the bench, there appeared to be significant skepticism that a unilateral executive action could alter a constitutional definition that has remained in place for more than a century. (The Washington Post)

Section 1 goes further. It provides that no state shall “deprive any person of life, liberty, or property, without due process of law,” and that no state shall “deny to any person within its jurisdiction the equal protection of the laws.” These clauses operate as structural limits. They do not dictate outcomes in every case, but they require that governmental power be exercised within a framework of law.

Over time, the Supreme Court has applied these protections to a wide range of state actions. In Brown v. Board of Education (1954), the Court held that state-sponsored segregation violated the Equal Protection Clause. In Mapp v. Ohio(1961), the Court applied Fourth Amendment protections against unreasonable searches and seizures to the states through the Due Process Clause. The principle underlying both decisions is consistent: state authority exists, but it is bounded.

Section 2 addresses a different, but related concept — representation. It provides that representation in Congress is to be apportioned among the states “according to their respective numbers,” counting the whole number of persons in each state.

That language became the foundation for the modern principle of equal representation. In Reynolds v. Sims (1964), the Supreme Court held that legislative districts must be roughly equal in population, establishing the rule often summarized as “one person, one vote.” The reasoning was straightforward: when districts vary significantly in population, the weight of an individual’s vote varies as well. Equal representation requires equal population.

Taken together, these two sections reflect a consistent structure.

Section 1 defines who belongs to the political community and places limits on how government may treat those within it. Section 2 defines how that community is represented. One addresses membership and rights. The other addresses structure and representation.

Both remain active.

The meaning of citizenship is now being tested in real time, with the Court signaling concern about whether that definition can be altered outside the constitutional process. At the same time, the principle of equal representation continues to shape how districts are drawn and how votes are counted.

These are not abstract questions. They go to the foundation of how the Constitution allocates authority and protects participation.

The Fourteenth Amendment does not eliminate disagreement. It provides the framework within which those disagreements are resolved - defining who is included, how power is exercised, and how representation is measured.

The Constitution limits governmental power so that authority ultimately remains with the people. Participation is what makes that system endure. ⚖