Supreme Court Justice Brennan: Key Rulings and Judicial Legacy

Justice William Brennan served on the United States Supreme Court from October 1956 to July 1990, and across those thirty-four years he wrote the opinions that built much of modern American constitutional law on free speech, voting rights, due process, religious liberty, and sex discrimination. His skill at assembling majorities around an expansive reading of individual rights made him the intellectual center of the Court’s liberal wing through the Warren, Burger, and early Rehnquist eras.

From Newark to the Supreme Court

Brennan was born in Newark, New Jersey in 1906. He graduated from Harvard Law School in 1931, practiced labor law in New Jersey, and served as an Army colonel from 1942 to 1946 working on military manpower and labor issues.1Federal Judicial Center. Biographical Directory of Article III Federal Judges – William Joseph Brennan, Jr. He joined the New Jersey Superior Court in 1949, moved to its appellate division, and by 1952 sat on the New Jersey Supreme Court.2NJ Courts. Associate Justice William J. Brennan Jr.

President Dwight D. Eisenhower placed Brennan on the Supreme Court through a recess appointment on October 16, 1956, filling the seat of retired Justice Sherman Minton.1Federal Judicial Center. Biographical Directory of Article III Federal Judges – William Joseph Brennan, Jr. With a presidential election weeks away, Eisenhower saw political value in nominating a Catholic Democrat from the Northeast. The Senate formally confirmed him on March 19, 1957 by voice vote, with Senator Joseph McCarthy the lone objector.3Oyez. William J. Brennan, Jr.

The Living Constitution and Human Dignity

Brennan’s judicial philosophy centered on what he called the Living Constitution: the idea that the document’s meaning must adapt to the society it governs. In a 1985 speech at Georgetown University, he put it directly: “We current Justices read the Constitution in the only way that we can: as Twentieth Century Americans.” The Constitution’s genius, he argued, rested “not in any static meaning it might have had in a world that is dead and gone, but in the adaptability of its great principles to cope with current problems and current needs.”

At the core of this approach sat the concept of human dignity. Brennan described the Constitution, together with the Bill of Rights and the Civil War Amendments, as “a sparkling vision of the supremacy of the human dignity of every individual.” Democratic self-governance, he said, reflected “the presumed worth of each individual,” and the judiciary’s job was to enforce that presumption against government overreach. That commitment ran through his opinions on welfare, criminal procedure, free speech, and capital punishment, and it drew sharp criticism from originalists who viewed evolving standards as judges substituting personal values for law.

Reapportionment and One Person, One Vote

Brennan’s opinion in Baker v. Carr (1962) opened federal courts to challenges against malapportioned state legislatures. Before Baker, courts had treated redistricting as a “political question” outside judicial reach. Brennan held that voters claiming their districts diluted their representation could bring those claims under the Equal Protection Clause of the Fourteenth Amendment.4Justia U.S. Supreme Court Center. Baker v. Carr, 369 U.S. 186 (1962)

Two years later, with the courthouse doors open, the Court applied the principle in Reynolds v. Sims (1964). Chief Justice Earl Warren, writing for an 8–1 majority that included Brennan, held that both chambers of a state legislature must be apportioned by population and gave the reapportionment revolution its shorthand: “one person, one vote.”5Justia U.S. Supreme Court Center. Reynolds v. Sims, 377 U.S. 533 (1964) Decades of rural overrepresentation in state capitols ended as a result.

Free Speech and Press Freedom

Brennan wrote several of the most important First Amendment opinions in the Court’s history. Each reflected his view that public debate needs legal breathing room, even when the speech is offensive or inaccurate.

New York Times Co. v. Sullivan

In New York Times Co. v. Sullivan (1964), Brennan transformed American defamation law. The case arose from an advertisement in the New York Times containing minor factual errors about police conduct during civil rights protests in Alabama; a local official sued for libel and won a $500,000 judgment under state law.6Justia U.S. Supreme Court Center. New York Times Co. v. Sullivan, 376 U.S. 254 (1964) Brennan reversed, holding that a public official cannot recover damages for a defamatory falsehood about official conduct unless the official proves “actual malice,” meaning knowledge of falsity or reckless disregard for the truth.7Supreme Court of the United States. New York Times Co. v. Sullivan, 376 U.S. 254 Erroneous statements, he wrote, are inevitable in free debate and must be protected if the freedoms of expression are to have the “breathing space” they need to survive. The actual malice standard still governs public-figure defamation cases.

Texas v. Johnson

A quarter-century later, Brennan wrote for a 5–4 majority in Texas v. Johnson (1989), holding that burning an American flag as political protest is protected expression under the First Amendment. Gregory Lee Johnson had been convicted under a Texas statute for burning a flag outside the 1984 Republican National Convention. Brennan’s opinion stated the governing principle plainly: “If there is a bedrock principle underlying the First Amendment, it is that the government may not prohibit the expression of an idea simply because society finds the idea itself offensive or disagreeable.”8Legal Information Institute. Texas v. Johnson, 491 U.S. 397 (1989) A congressional effort to pass a constitutional amendment banning flag desecration followed and failed.

Roth and the Obscenity Problem

Brennan’s earliest major First Amendment opinion was also his most troubled. In Roth v. United States (1957), he wrote that obscene material falls outside First Amendment protection and devised a test asking whether, to the average person applying contemporary community standards, the dominant theme of the material taken as a whole appeals to prurient interest.9Justia U.S. Supreme Court Center. Roth v. United States, 354 U.S. 476 (1957) The test proved almost impossible to apply, and by 1973 Brennan had publicly abandoned the framework he had built, concluding that government should regulate sexual expression only in its distribution to minors or unwilling adults.

Religious Liberty: The Sherbert Test

In Sherbert v. Verner (1963), Brennan established the standard that governed religious liberty claims for three decades. A Seventh-day Adventist had been denied unemployment benefits after she refused to work on Saturdays. Brennan held that when the government imposes a substantial burden on someone’s ability to practice their religion, it must demonstrate a “compelling state interest” to justify that burden. A rational relationship to some state interest was not enough; “only the gravest abuses, endangering paramount interests, give occasion for permissible limitation” of First Amendment rights.10Supreme Court of the United States. Sherbert v. Verner, 374 U.S. 398 (1963) The Sherbert test governed Free Exercise cases until the Court narrowed it in Employment Division v. Smith (1990), and Congress later tried to restore it through the Religious Freedom Restoration Act of 1993.

Due Process and Sex Discrimination

Goldberg v. Kelly

In Goldberg v. Kelly (1970), Brennan held that the government cannot terminate welfare benefits without first giving the recipient a hearing. The traditional view treated public assistance as a privilege the government could withdraw at will. Brennan rejected that distinction, treating welfare as a statutory entitlement whose loss without a hearing deprived the recipient of the means to obtain the necessities of life.11Justia. Goldberg v. Kelly, 397 U.S. 254 (1970) The ruling required pre-termination procedures with evidence, confrontation of adverse witnesses, and a decision by an impartial decision-maker based solely on the hearing record.12Library of Congress. Goldberg v. Kelly, 397 U.S. 254 Government agencies across the country adopted transparent procedures before cutting off benefits, pensions, and professional licenses as a result.

Craig v. Boren

Brennan also created the standard that governs most sex-discrimination challenges. In Craig v. Boren (1976), he struck down an Oklahoma law that let women buy low-alcohol beer at eighteen but required men to wait until twenty-one.13Justia. Craig v. Boren, 429 U.S. 190 (1976) Before Craig, laws classifying by sex faced only the lowest level of judicial review and usually survived. Brennan introduced intermediate scrutiny: to uphold a gender-based classification, the government must show that it serves an important objective and is substantially related to achieving that objective.14Legal Information Institute. Craig v. Boren, 429 U.S. 190 (1976) Oklahoma’s traffic-safety data did not clear that bar, and the standard still applies today.

The Capital Punishment Dissents

Brennan maintained throughout his tenure that the death penalty is, under all circumstances, cruel and unusual punishment prohibited by the Eighth and Fourteenth Amendments. In his Georgetown speech, he grounded the position in the same principle that drove the rest of his work: “the State, even as it punishes, must treat its citizens in a manner consistent with their intrinsic worth as human beings.”

After the Court reinstated capital punishment in Gregg v. Georgia (1976), Brennan dissented from every death sentence the Court allowed to stand for the remaining fourteen years of his tenure. The dissents, often joined by Justice Thurgood Marshall, typically followed a consistent formula: “Adhering to my view that the death penalty is in all circumstances cruel and unusual punishment prohibited by the Eighth and Fourteenth Amendments, I would vacate the death sentence in this case.” The persistence was the point.

The Rule of Five

Brennan was famous for holding up five fingers and telling clerks that the most important rule in constitutional law was the Rule of Five: it takes five votes to do anything at the Supreme Court. Winning on principle meant nothing without a majority. He invested heavily in personal relationships with the other justices, met with them individually to understand their concerns, and would narrow an opinion or concede a minor point to hold a fragile five-justice coalition together. A sweeping opinion that attracted only four votes was, to Brennan, worth less than a modest one that became binding law.

His most durable alliance was with Justice Thurgood Marshall, who joined the Court in 1967. From that point until Brennan’s retirement, the two formed one of the most consistent liberal voting blocs in the Court’s history.15St. Mary’s University School of Law. Writing in the Margins: Brennan, Marshall, and the Inherent Weaknesses of Liberal Judicial Decision-Making Brennan supplied doctrinal architecture; Marshall supplied the moral urgency of a lawyer who had argued Brown v. Board of Education before the very Court on which he now sat.

Retirement and Legacy

Brennan retired in July 1990 at age eighty-four after suffering a minor stroke. He died in 1997. Baker v. Carr made redistricting justiciable. New York Times v. Sullivan shielded the press from retaliatory libel suits. Goldberg v. Kelly extended due process to welfare recipients. Craig v. Boren gave courts intermediate scrutiny for sex discrimination. Sherbert v. Verner established the compelling interest test for religious liberty. Texas v. Johnson confirmed that unpopular speech receives the same constitutional protection as popular speech. Each remains good law or foundational to the doctrine that replaced it.16Justia. Justice William Brennan Tying the decisions together was a single interpretive commitment: the Constitution protects the dignity of every person, and courts exist to enforce that protection when the political branches will not.