The Incorporation Doctrine stands as one of the most consequential developments in American constitutional law. Through its application, the fundamental freedoms enshrined in the Bill of Rights—originally binding only the federal government—were extended to restrain state and local governments as well. This transformation did not happen overnight; it emerged from a series of fierce legal battles spanning the early twentieth century to the present. Each challenge tested the reach of the Fourteenth Amendment’s Due Process Clause, shaped the modern relationship between federal and state power, and determined which rights would be protected uniformly across the nation. Understanding the historical challenges to the Incorporation Doctrine is essential for grasping both the current scope of individual liberties and the ongoing debates about federalism and judicial authority.

Origins of the Incorporation Doctrine

The founding generation did not anticipate that the Bill of Rights would apply to the states. The First Congress proposed the first ten amendments as limitations on the newly created federal government, a design explicitly confirmed by the Supreme Court in Barron v. Baltimore (1833). In that unanimous opinion, Chief Justice John Marshall held that the Fifth Amendment’s Takings Clause did not bind the city of Baltimore because the Bill of Rights operated only against the national government. For the next seven decades, states were free to adopt their own protections—or to deny them—without federal constitutional review.

The landscape shifted after the Civil War. The Reconstruction Amendments, particularly the Fourteenth Amendment ratified in 1868, introduced new limits on state power. Section One of the amendment declares: “No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.” These words would become the textual foundation for the Incorporation Doctrine, but their meaning was fiercely contested from the start.

In the Slaughter-House Cases (1873), the Supreme Court severely limited the reach of the Privileges or Immunities Clause, holding that it protected only a narrow set of federal citizenship rights and not the broader guarantees found in the Bill of Rights. This decision effectively foreclosed one potential path to nationwide rights protection. The Court instead turned to the Due Process Clause, interpreting it to encompass certain “fundamental” liberties that the states could not abridge. This selective, case-by-case approach would define the Incorporation Doctrine for the next century.

The early twentieth century saw the first successful invocations of this theory. In Twining v. New Jersey (1908), the Court acknowledged that some Bill of Rights protections might be “fundamental” and thus incorporated through due process, though it declined to apply the privilege against self-incrimination to the states in that specific case. The seeds had been planted, but full incorporation would require a series of landmark challenges.

Early Challenges and the Birth of Selective Incorporation

Gitlow v. New York (1925): The Cracking of the Federal Wall

The decisive breakthrough came in Gitlow v. New York, 268 U.S. 652 (1925). Benjamin Gitlow, a socialist activist, was convicted under New York’s criminal anarchy law for publishing a pamphlet advocating the overthrow of the government. On appeal, his lawyers argued that the First Amendment’s free speech clause protected him from state prosecution. The Supreme Court agreed to hear the case, and while it ultimately upheld Gitlow’s conviction on the merits (finding that the speech was not protected because it posed a “clear and present danger”), the Court made a landmark pronouncement: “For present purposes we may and do assume that freedom of speech and of the press—which are protected by the First Amendment from abridgment by Congress—are among the fundamental personal rights and ‘liberties’ protected by the due process clause of the Fourteenth Amendment from impairment by the States.”

This dictum—though technically unnecessary to the holding—signaled that the Court was willing to apply free speech protections to the states. Gitlow thus became the first case in which the Supreme Court explicitly incorporated a provision of the Bill of Rights through the Fourteenth Amendment’s Due Process Clause. The decision opened the door for a flood of subsequent claims, and the era of selective incorporation had begun.

Early Post-Gitlow Cases

In the years immediately following Gitlow, the Court incorporated several other First Amendment rights. Stromberg v. California (1931) struck down a state law prohibiting the display of a red flag, incorporating the right to freedom of assembly and symbolic speech. Near v. Minnesota (1931) applied the free press clause to the states, establishing that prior restraints were presumptively unconstitutional at both the federal and state levels. De Jonge v. Oregon (1937) extended the freedom of assembly guarantee to state proceedings. By the mid-1930s, the core political rights of the First Amendment were effectively nationalized.

But the Court moved cautiously with other amendments. In Palko v. Connecticut, 302 U.S. 319 (1937), the defendant argued that Connecticut’s law allowing the state to appeal criminal acquittals violated the Fifth Amendment’s double jeopardy clause, which he claimed should be incorporated. Justice Benjamin Cardozo, writing for the Court, rejected the claim. He introduced a crucial distinction: only those rights that were “implicit in the concept of ordered liberty” and “fundamental to the American scheme of justice” would be incorporated through due process. Double jeopardy, he reasoned, did not meet that exacting standard because its abridgment did not “violate a ‘principle of justice so rooted in the traditions and conscience of our people as to be ranked as fundamental.’” The Court thus reaffirmed a selective, not total, incorporation approach.

Palko’s “ordered liberty” framework would govern incorporation for decades. Under that standard, the Court gradually added rights from the Fourth, Fifth, Sixth, and Eighth Amendments, but only after evaluating each one against the yardstick of fundamental fairness. This incremental process meant that many provisions of the Bill of Rights remained unincorporated until much later—and some, such as the right to a grand jury indictment, have still never been applied to the states.

Adamson v. California (1947): The Total Incorporation Debate

The most direct assault on the selective incorporation approach came in Adamson v. California, 332 U.S. 46 (1947). Admiral Dewey Adamson was convicted of murder in a California state court. At trial, the prosecutor commented on Adamson’s failure to testify, and the judge instructed the jury that it could draw an adverse inference from his silence. Adamson argued that this violated the Fifth Amendment’s privilege against self-incrimination, which he claimed should be fully incorporated against the states. The Supreme Court, by a 5-4 vote, rejected his argument.

Justice Felix Frankfurter, writing for the majority, reaffirmed the Palko “ordered liberty” test. He held that the Fifth Amendment’s self-incrimination clause was not made applicable to the states through the Due Process Clause because the trial’s overall fairness, not the specific federal rule, was the constitutional touchstone. The dissent, led by Justice Hugo Black, mounted a powerful counterargument. Black contended that the original meaning of the Fourteenth Amendment’s Privileges or Immunities Clause was intended to make the entire Bill of Rights binding on the states—a “total incorporation” theory. He marshalled historical evidence from the Reconstruction Congress to support his view, arguing that the Slaughter-House Cases had wrongly eviscerated that clause. Justice William O. Douglas joined Black’s dissent, and Justice Frank Murphy (joined by Wiley Rutledge) went even further, arguing for a “total incorporation plus” approach that would include even unenumerated fundamental rights.

Adamson did not change the law; the Court continued to apply selective incorporation. But the vigorous dissent elevated the total incorporation debate to the highest level of constitutional discourse. While Black’s view never commanded a majority, it influenced later decisions and forced the Court to articulate more clearly why some rights were fundamental and others were not. The case remains a touchstone for debates about originalism, textualism, and the proper role of the judiciary.

Later Challenges and the Expansion of Incorporation

Criminal Procedure and the Warren Court

The most dramatic expansion of the Incorporation Doctrine occurred under Chief Justice Earl Warren in the 1960s. The Warren Court rejected Frankfurter’s more restrained “fundamental fairness” standard in favor of a rule that any provision considered “so rooted in the traditions and conscience of our people as to be ranked as fundamental” would be fully incorporated, with all its federal nuances. This led to a sweeping nationalization of criminal procedure rights.

Key cases include:

  • Mapp v. Ohio (1961): Incorporated the Fourth Amendment’s exclusionary rule, barring states from using illegally obtained evidence.
  • Gideon v. Wainwright (1963): Incorporated the Sixth Amendment right to counsel, guaranteeing a lawyer for indigent defendants in felony cases.
  • Malloy v. Hogan (1964): Overruled Adamson in part, incorporating the Fifth Amendment privilege against self-incrimination.
  • Pointer v. Texas (1965): Incorporated the Sixth Amendment right to confront witnesses.
  • Klopfer v. North Carolina (1967): Incorporated the Sixth Amendment right to a speedy trial.
  • Duncan v. Louisiana (1968): Incorporated the Sixth Amendment right to a jury trial in serious criminal cases.

By the end of the Warren era, almost all of the protections found in the first eight amendments had been applied to the states. The only major exceptions were the Third Amendment’s quartering of soldiers (never litigated in an incorporation context), the Fifth Amendment’s grand jury indictment clause, the Seventh Amendment’s civil jury trial right, and the Eighth Amendment’s excessive bail clause (though the Cruel and Unusual Punishments Clause was incorporated in Robinson v. California (1962)). The Incorporation Doctrine had, for all practical purposes, become the mechanism by which the Bill of Rights was fully nationalized.

Second Amendment Challenges: Heller and McDonald

The most significant late-twentieth and early-twenty-first century challenge to the Incorporation Doctrine involved the right to keep and bear arms. For decades, the Second Amendment was understood to protect a collective right tied to militia service, and the Supreme Court consistently declined to hear incorporation challenges. That changed with District of Columbia v. Heller (2008), in which the Court, by a 5-4 vote, held that the Second Amendment protects an individual right to possess a firearm for self-defense within the home. However, Heller only addressed the federal district—the District of Columbia—and explicitly left open the question of whether the right applied to the states.

That question was answered two years later in McDonald v. City of Chicago, 561 U.S. 742 (2010). Otis McDonald, a Chicago resident, challenged the city’s handgun ban, arguing that the Second Amendment was incorporated through the Fourteenth Amendment. The Court agreed, but the justices split on the proper rationale. The plurality opinion, written by Justice Samuel Alito, relied on the Due Process Clause, citing the now-established selective incorporation precedent. Justice Clarence Thomas, concurring in the judgment, offered a different path: he argued that the Privileges or Immunities Clause should be revived to protect the right to keep and bear arms. Thomas’s opinion breathed new life into a clause that had been dormant since the Slaughter-House Cases, but it commanded only his single vote.

McDonald was a landmark victory for Second Amendment advocates and demonstrated that the Incorporation Doctrine remains a dynamic and contested field. It also revived scholarly and judicial interest in the Privileges or Immunities Clause as an alternative vehicle for incorporation, though the Court has not yet adopted that approach in any subsequent case.

Ongoing Debates and Unincorporated Provisions

Despite the near-complete incorporation of the Bill of Rights, several provisions remain outside the Fourteenth Amendment’s reach. The most prominent are:

  • Fifth Amendment’s Grand Jury Indictment Clause: In Hurtado v. California (1884), the Supreme Court refused to require states to use grand juries; this decision has never been overruled. About half the states still use grand jury indictments, but the Constitution does not compel them to do so.
  • Seventh Amendment’s Civil Jury Trial Right: The Supreme Court held in Minneapolis & St. Louis Railroad Co. v. Bombolis (1916) that the Seventh Amendment is not incorporated. States may therefore limit civil jury trials, provided they offer some alternative process.
  • Third Amendment’s Quartering of Soldiers: While never directly litigated in a state context, the text and history suggest it could be incorporated as a fundamental right protecting home privacy, but no Supreme Court case has addressed it.
  • Eighth Amendment’s Excessive Bail Clause: Although the Cruel and Unusual Punishments Clause was incorporated in Robinson, the excessive bail provision has not been formally applied to states, though lower courts generally assume it is incorporated.

The selective incorporation model thus leaves states with some flexibility in criminal and civil procedure, a fact that continues to generate litigation and scholarly commentary. Some critics argue that the unincorporated rights are anachronisms that should be fully applied; others maintain that federalism values justify allowing states to experiment.

Outcomes of the Historical Challenges

The Triumph of Selective Incorporation

The most enduring outcome of the historical challenges to the Incorporation Doctrine is the firm establishment of selective incorporation as the governing framework. The Court has never adopted the total incorporation theory advocated by Justice Black or the doctrine of total incorporation plus advocated by Justice Murphy. Instead, it has applied each Bill of Rights guarantee to the states only after a case-specific determination that the right is fundamental to liberty and justice. This approach has produced a body of law that is both incremental and pragmatic, allowing the Court to adapt protections to changing societal norms without overruling prior precedent wholesale.

The selective incorporation approach also preserved a role for state experimentation in areas where uniformity was not deemed constitutionally required. For example, because the Seventh Amendment is not incorporated, states are free to set different thresholds for jury trials in civil cases. Similarly, the non-incorporation of the grand jury clause allows states to use alternative charging mechanisms such as preliminary hearings. This flexibility reflects the federalist design of the Constitution while ensuring that the most essential liberties are protected nationwide.

Impact on Federalism and Judicial Power

The Incorporation Doctrine has profoundly altered the balance of power between the federal government and the states. Prior to Gitlow, states had almost total autonomy in defining criminal procedure and civil liberties. After incorporation, the Supreme Court became the ultimate arbiter of state justice, reviewing local laws and convictions under the exacting standards of the Bill of Rights. This shift has been praised as necessary to protect individual rights from majoritarian abuse, but it has also been criticized for centralizing judicial authority and stifling state innovation.

The Court’s role has expand beyond mere textual interpretation to encompass a broader assessment of what rights are “fundamental.” That inquiry inevitably involves moral and historical judgments, and it has led to sharp debates about judicial restraint versus judicial activism. The dissents in cases like Palko and Adamson warned that the Court would become a “superlegislature” if it too freely incorporated rights. Proponents of incorporation, however, argue that the Fourteenth Amendment was designed to impose federal limits on state power, and that the Court must enforce those limits vigorously.

Continuing Relevance: New Rights and Old Debates

Historical challenges to the Incorporation Doctrine are not merely academic; they continue to shape current controversies. For example, the debate over the Privileges or Immunities Clause has re-emerged in cases concerning gun rights, abortion, and economic liberties. In Dobbs v. Jackson Women’s Health Organization (2022), the Court overruled Roe v. Wade and Planned Parenthood v. Casey, holding that the Fourteenth Amendment does not protect a right to abortion. That decision relied in part on a historical analysis of whether abortion was “deeply rooted in this Nation’s history and tradition”—the same “ordered liberty” test from Palko. Critics of Dobbs argue that the Court improperly narrowed the scope of unenumerated rights, while supporters contend that it simply returned to the pre-incorporation model of leaving such policy decisions to the states.

Similarly, the Second Amendment remains a live issue. After McDonald, lower courts have struggled to apply the “fundamental right” test to state and local gun regulations. The Supreme Court’s recent decision in New York State Rifle & Pistol Association v. Bruen (2022) clarified that the Second Amendment protects a right to carry firearms in public, and that states may only justify firearm restrictions by showing a “historical tradition” of analogous regulation. That test directly echoes the incorporation jurisprudence’s emphasis on history and tradition as the touchstone for fundamental rights.

The Incorporation Doctrine also intersects with modern debates about criminal justice reform, police accountability, and digital privacy. For instance, the Fourth Amendment’s protection against unreasonable searches and seizures, as incorporated in Mapp v. Ohio, now applies to state and local law enforcement. The Court has had to adapt that protection to new technologies such as cell phones, GPS tracking, and drones. Each new case implicitly relies on the foundational assumption that the Fourth Amendment binds the states—an assumption that would not exist without the Incorporation Doctrine.

Conclusion

The historical challenges to the Incorporation Doctrine are a story of incremental constitutional change, fierce judicial debate, and expanding liberty. From the dictum in Gitlow that cracked open the door to the nationalization of rights, through the careful balancing of Palko, the total incorporation dissent of Adamson, the sweeping reforms of the Warren Court, and the more recent Second Amendment incorporation in McDonald, the doctrine has evolved to become a central pillar of American constitutional law. It has ensured that the freedoms listed in the Bill of Rights are not merely promises from the federal government but are real, enforceable protections against state overreach as well.

Yet the doctrine remains incomplete and contested. The unincorporated provisions, the renewed attention to the Privileges or Immunities Clause, and the ongoing application of fundamental-rights analysis to new issues all demonstrate that the Incorporation Doctrine is not a finished project. It is a living framework through which the courts continue to mediate between the competing values of federalism, liberty, and justice. Understanding the challenges that built the doctrine—and the outcomes they produced—is essential for anyone seeking to grasp the modern meaning of the Bill of Rights and the enduring power of the Fourteenth Amendment.