The Foundational Tension: The Bill of Rights, the States, and the Birth of Selective Incorporation

The U.S. Constitution created a dual system of sovereignty, with powers divided between the national government and the states. This architecture, federalism, was intended to preserve state autonomy while granting the federal government enumerated powers. However, the original Bill of Rights—the first ten amendments—applied only to the federal government. As stated in Barron v. Baltimore (1833), the Supreme Court held that the Bill of Rights did not limit state action. For nearly a century, states were free to establish their own protections for individual liberties, leading to significant variation across the country. This variation raised a fundamental question: Could a nation founded on the promise of liberty allow states to deny basic rights that the federal government was bound to respect?

The answer came through the Fourteenth Amendment, ratified in 1868. Its Privileges or Immunities Clause, Due Process Clause, and Equal Protection Clause were designed, in part, to ensure that states did not abridge the rights of newly freed slaves and other citizens. However, the Supreme Court initially interpreted the Privileges or Immunities Clause very narrowly in the Slaughter-House Cases (1873), effectively gutting its potential to apply the Bill of Rights to the states. Instead, the Court turned to the Due Process Clause as the vehicle for incorporation. This legal doctrine—selective incorporation—transformed American federalism by establishing a floor of national rights that no state could violate.

Selective incorporation is not a wholesale application of the Bill of Rights. Rather, it is a case-by-case process in which the Supreme Court determines whether a particular right is "fundamental to our scheme of ordered liberty" and therefore should apply to the states. This gradual approach reflects the tension inherent in federalism: national uniformity of rights versus state experimentation and autonomy. Understanding this relationship requires a deep dive into the key cases, the legal reasoning behind incorporation, and the ongoing debates about the proper balance between federal power and state sovereignty.

The Fourteenth Amendment: The Bridge Between Federal Rights and State Action

Before selective incorporation could begin, the Constitution needed a mechanism to bind the states. The Fourteenth Amendment's Due Process Clause states: "nor shall any State deprive any person of life, liberty, or property, without due process of law." While the clause explicitly mentions "due process," the Court has interpreted it to include substantive protections—that is, certain liberties are so fundamental that no state can infringe upon them, regardless of the procedure used. This "substantive due process" doctrine is the foundation of selective incorporation.

The alternative—total incorporation—was advocated by Justice Hugo Black, who argued that the Privileges or Immunities Clause was intended to apply the entire Bill of Rights to the states. However, the Court rejected that approach in Adamson v. California (1947) and instead continued the piecemeal process. As a result, some rights have been incorporated, while others remain unincorporated (such as the Third Amendment's prohibition on quartering soldiers, the Fifth Amendment's grand jury indictment requirement, and the Seventh Amendment's right to a jury trial in civil cases). This selective approach reflects a pragmatic compromise: the Court can protect fundamental rights without imposing every detail of federal procedure on state courts.

Key Supreme Court Cases: The Gradual Application of the Bill of Rights

The timeline of selective incorporation is a story of incremental change, often driven by the justices' evolving understanding of fundamental fairness. Below are the landmark cases that applied specific rights to the states, along with the year of incorporation and the constitutional provision involved.

First Amendment Freedoms

  • Gitlow v. New York (1925) – Freedom of speech and press. The Court applied the free speech clause via the Fourteenth Amendment's Due Process Clause, even though it upheld Gitlow's conviction under a state criminal anarchy law. This case opened the door for future incorporation of First Amendment rights.
  • Near v. Minnesota (1931) – Freedom of the press (prior restraint). The Court incorporated the protection against prior restraint, striking down a state law that allowed the suppression of "malicious" publications.
  • Cantwell v. Connecticut (1940) – Free exercise of religion. The Court applied the First Amendment's religious freedom protections to state action.
  • Everson v. Board of Education (1947) – Establishment Clause. The Court incorporated the prohibition on state establishment of religion, upholding a state program that reimbursed bus fares for parochial school students under the "child benefit" theory.

Criminal Procedure Rights

  • Mapp v. Ohio (1961) – Fourth Amendment exclusionary rule. The Court applied the rule that illegally obtained evidence cannot be used in state court, dramatically reshaping state criminal investigations.
  • Gideon v. Wainwright (1963) – Sixth Amendment right to counsel. The Court required states to provide an attorney to criminal defendants who cannot afford one, a major expansion of indigent defense obligations.
  • Miranda v. Arizona (1966) – Fifth Amendment privilege against self-incrimination. The Court required states to comply with Miranda warnings (right to remain silent, right to an attorney) before custodial interrogation.
  • Duncan v. Louisiana (1968) – Sixth Amendment right to a jury trial for serious offenses. The Court incorporated this right, ensuring state defendants facing serious criminal charges have access to a jury.
  • Washington v. Texas (1967) – Sixth Amendment compulsory process to obtain witnesses. The Court applied the right to compel testimony and present a defense.
  • Benton v. Maryland (1969) – Fifth Amendment protection against double jeopardy. The Court overruled previous precedent and incorporated this right, preventing states from trying a person twice for the same offense.

Other Rights

  • Chicago, Burlington & Quincy Railroad Co. v. Chicago (1897) – Fifth Amendment takings clause. The Court incorporated just compensation for property taken by a state (though this was before the modern incorporation framework).
  • NAACP v. Alabama (1958) – First Amendment freedom of association. The Court recognized the right to associate as a fundamental liberty binding on the states.
  • Schilb v. Kuebel (1971) – Eighth Amendment prohibition on excessive bail (though the Court assumed incorporation without full argument).
  • McDonald v. Chicago (2010) – Second Amendment right to keep and bear arms. In a landmark decision, the Court applied the Second Amendment to state and local governments, striking down a Chicago handgun ban.
  • Timbs v. Indiana (2019) – Eighth Amendment excessive fines clause. The Court incorporated this protection, limiting state forfeiture practices.

As of 2025, only a handful of provisions remain unincorporated: the Third Amendment (quartering soldiers), the Fifth Amendment's grand jury requirement, the Seventh Amendment's civil jury trial right, and the Eighth Amendment's prohibition on excessive fines (now incorporated by Timbs—but the excessive bail clause is assumed).

How Selective Incorporation Reshapes Federalism

Federalism is not a static concept. The relationship between selective incorporation and federalism can be understood through three fundamental shifts:

1. National Uniformity of Fundamental Rights

Before incorporation, a citizen's rights depended on which state they lived in. For example, a person accused of a crime in Oregon might have fewer procedural protections than someone in New York. Selective incorporation establishes a national minimum standard. As Justice Cardozo wrote in Palko v. Connecticut (1937), the Due Process Clause incorporates only those rights "implicit in the concept of ordered liberty." This ensures that no state can fall below the floor of fundamental fairness. The result is a more uniform—but not identical—set of rights across the states. States can still provide greater protections than the federal minimum, leading to a "laboratory of democracy" where states experiment with stronger safeguards.

2. Limitation on State Police Power

The state police power—the inherent authority to protect health, safety, morals, and general welfare—was the traditional basis for state regulation. Selective incorporation curtails this power when it conflicts with incorporated rights. For instance, a state cannot enforce a law that prohibits burning the flag as a form of political protest (Texas v. Johnson, 1989) because the First Amendment free speech clause now applies. Similarly, a state cannot deny a criminal defendant a lawyer, even if that state's constitution does not guarantee the right. This limitation is a direct transfer of authority from states to the federal judiciary, which sits as the ultimate arbiter of rights.

3. Federal Judicial Authority Over State Courts and Legislatures

Selective incorporation significantly expands the power of the Supreme Court to review state criminal procedures, legislative enactments, and executive actions. When a state law violates an incorporated right, the federal courts can invalidate it. This creates a vertical check that was absent in the early republic. Critics argue that this undermines federalism by allowing unelected judges to override democratically elected state legislatures. Supporters counter that the Bill of Rights is meaningless if states can simply ignore it, and that the Fourteenth Amendment was explicitly intended to limit state power.

The Counterargument: Anti-Federalism and the Original Understanding

Opponents of selective incorporation often invoke the original understanding of the Constitution. They argue that the framers of the Bill of Rights deliberately declined to apply it to the states, believing that state constitutions and state bills of rights would protect citizens. The Ninth and Tenth Amendments further reinforce the idea of reserved state powers. According to this view, the Fourteenth Amendment was not intended to overturn this structural arrangement but only to ensure equal citizenship for freed slaves—not to impose the entire Bill of Rights on the states. Justice Thomas, in a concurrence in McDonald v. Chicago, suggested that the Privileges or Immunities Clause, not the Due Process Clause, should be the vehicle for incorporation, but he still argued for incorporating the Second Amendment. This debate reflects a deeper tension between federalism and individual rights: can the nation protect liberty without centralizing power? Selective incorporation resolves this tension by prioritizing fundamental rights over state autonomy, but it does so at the cost of diminishing the sovereignty of states.

Modern Implications and Unresolved Questions

Selective incorporation continues to shape contemporary legal battles. Recent cases highlight how the doctrine interacts with evolving societal norms and new technologies.

The Second Amendment After McDonald

Since McDonald v. Chicago (2010), states have been bound by the Second Amendment. This has led to a wave of challenges to state gun control laws, from assault weapons bans (upheld in some circuits, struck down in others) to concealed carry restrictions. The Supreme Court's decision in New York State Rifle & Pistol Association v. Bruen (2022) expanded the scope of Second Amendment protection by requiring states to justify their laws based on historical tradition. This decision ties back to selective incorporation: because the Second Amendment now applies to states, the Court must define its meaning for state and local governments.

Criminal Procedure and State Courts

Incorporated criminal procedure rights remain a battleground. The Mapp exclusionary rule has been narrowed in cases like Herring v. United States (2009), applying only when police acted with deliberate or reckless disregard for rights. Similarly, the Gideon right to counsel has been strained by inadequate public defender systems in many states. Selective incorporation sets the constitutional floor, but states often struggle to fund compliance. This raises a practical federalism question: does incorporation create unfunded mandates for states?

Abortion and Substantive Due Process

While selective incorporation is typically about applying the Bill of Rights, the same Due Process Clause has been used to protect unenumerated rights—most notably the right to abortion in Roe v. Wade (1973) and Planned Parenthood v. Casey (1992). However, in Dobbs v. Jackson Women's Health Organization (2022), the Supreme Court overruled those precedents, holding that the right to abortion is not deeply rooted in the nation's history and thus not a fundamental liberty protected by substantive due process. This decision returned abortion regulation to the states, effectively an "unincorporation" of a right that had been applied to the states under the due process framework. Dobbs demonstrates that the process of incorporation is not irreversible; the Court can retreat if it finds a right was never properly incorporated.

Technology and New Frontiers

Selective incorporation applies to modern contexts. For instance, the Fourth Amendment's protection against unreasonable searches has been applied to digital data, as in Riley v. California (2014) (warrant required for cell phone data incident to arrest) and Carpenter v. United States (2018) (warrant required for historical cell-site location information). These cases extend incorporation into new technological realms, forcing state law enforcement to adapt. The First Amendment's free speech rights have also been applied to social media platforms in cases like Packingham v. North Carolina (2017), which struck down a state law banning registered sex offenders from social media.

Conclusion: The Enduring Dialectic Between Uniform Rights and State Autonomy

The relationship between selective incorporation and federalism is not a settled equilibrium but an ongoing negotiation. For more than a century, the Supreme Court has gradually applied specific Bill of Rights protections to the states, ensuring a baseline of freedom for every American, regardless of their state of residence. This process has strengthened individual liberty but also centralized power in the federal judiciary, reshaping the balance of American federalism.

Critics argue that selective incorporation has weakened the states as laboratories of democracy by imposing a one-size-fits-all standard. Proponents contend that fundamental rights cannot be subject to local variation—that a right is not truly a right if a state can abridge it. Both perspectives have merit, and the Constitution's text leaves room for interpretation. As new challenges arise—from artificial intelligence to privacy in a surveillance society—the question will recur: Which rights are so fundamental that no state may deny them? The answer will continue to define the relationship between selective incorporation and federalism for generations to come.

For further reading on the history of selective incorporation, consult the Oyez Project's overview of incorporation cases and the Cornell Legal Information Institute's entry on incorporation. For a deeper dive into the Fourteenth Amendment, the National Constitution Center's interactive constitution offers expert analyses. The debate over selective incorporation is captured in Justice Thomas's concurrence in McDonald v. Chicago, available on Justia.

Ultimately, selective incorporation demonstrates that federalism is not a rigid formula but a dynamic process. It allows the nation to evolve while respecting the foundational structure of dual sovereignty. As long as the Constitution endures, the courts will continue to ask which liberties are essential to "ordered liberty"—and in doing so, they will shape the relationship between the federal government and the states for decades to come.