Ketanji Brown Jackson

The first Black woman on the Supreme Court — a former federal public defender with particular expertise in criminal sentencing.

Associate Justice2022–presentAppointed by BidenJustice #116
Born September 14, 1970 · Washington, D.C.
College Harvard University, 1992
Law Harvard Law School, 1996

Path to the Supreme Court

The 116th justice arrived at the Court trailing two caricatures, both drawn during her confirmation. To her opponents she was a lenient judge produced by a campaign pledge; to her admirers she was a historical destination, the first Black woman on the Supreme Court of the United States, celebrated before she had written a line as a justice. Neither picture survives contact with the record. The record shows a working lawyer of a range no modern colleague can match, the only member of the present Court who has stood beside an indigent client at sentencing, and the fastest-forming judicial voice of any junior justice in the era of measurement. The life that produced that lawyer began in Washington and was made in Miami.

Ketanji Onyika Brown was born in Washington, D.C., on September 14, 1970, to Johnny and Ellery Brown, schoolteachers who had grown up under segregation in Florida and gone from segregated schools to historically Black colleges. An aunt then serving in the Peace Corps in West Africa sent a list of African names; the one her parents chose, they were told, means 'lovely one,' and Justice Jackson would take it for the title of her memoir half a century later. When she was young the family returned to Miami, and her parents rose as the segregated world of their own childhoods receded: her father put himself through the University of Miami's law school and became the chief attorney to the Miami-Dade County School Board, her mother became principal of the New World School of the Arts. Her earliest memory of the law, she has often said, is of sitting at the kitchen table with coloring books while her father sat across from her with his casebooks. The wider family held the whole criminal law in miniature. One uncle, Calvin Ross, rose to chief of the Miami police; another received a life sentence in 1989 for a nonviolent cocaine offense under the mandatory regimes of that era; President Obama commuted the sentence decades later.

At Miami Palmetto Senior High School she was a champion competitive speaker, winner of a national oratory title, and president of her senior class of 1988. She would later credit speech and debate, which carried her to tournaments across the country, as the making of her; the school's practice rooms are as close as her biography comes to the log cabin of the older chapters in this set. At Harvard College she concentrated in government, took up improvisational theater, and helped lead Black Students Association protests after a student hung a Confederate flag from a dormitory window. Her senior thesis examined coercion in plea bargaining, an interest that reads in hindsight as a table of contents. She graduated magna cum laude in 1992, and at Harvard had met Patrick Jackson, a classmate from an old Boston family, bound for surgery; they married in 1996, the year she finished Harvard Law School cum laude after service as a supervising editor of the Harvard Law Review. Two daughters followed.

Three clerkships in four years gave her the standard credential and something more. She clerked for Judge Patti B. Saris of the District of Massachusetts in 1996–97, for the First Circuit's Bruce M. Selya in 1997–98, and, after a year in private practice in Washington, for Justice Stephen Breyer (§108) in October Term 1999. Then, where the standard path runs straight to a partnership or a professorship, hers wandered, and the wandering became the point. She practiced at Goodwin Procter in Boston and at the small Washington firm of Kenneth Feinberg, the mediator the nation would call on to price its catastrophes. From 2003 to 2005 she served as an assistant special counsel to the United States Sentencing Commission. And from 2005 to 2007 she was an assistant federal public defender in the District of Columbia, handling appeals for defendants who could not pay, the first person with that title ever to reach the Supreme Court and the first justice since Thurgood Marshall (§96) to have represented indigent criminal defendants. She then spent three years in appellate practice at Morrison & Foerster before returning to the Sentencing Commission in 2010, this time as vice chair, nominated by President Obama and confirmed in February 2010. In her four years the Commission voted to make its reduced crack-cocaine guidelines retroactive and then, in the 'drugs minus two' amendment, cut the guideline ranges across the drug table and made that retroactive as well, decisions that shortened thousands of federal drug sentences.

President Obama nominated her to the United States District Court for the District of Columbia in September 2012, to the seat Henry H. Kennedy Jr. had vacated; renominated in January 2013, she was confirmed by voice vote that March, with no recorded opposition. Eight years of trial work followed, most of it the anonymous labor of a busy federal district: contracts, agency review, criminal calendars. What made her name was the executive-power docket that landed in her courtroom after 2017. In 2018 she struck down the core of three executive orders curtailing federal employee unions in American Federation of Government Employees v. Trump; in 2019, in Make the Road New York v. McAleenan, she blocked the administration's expansion of fast-track deportations; appeals later undid both rulings. And on November 25, 2019, in Committee on the Judiciary v. McGahn, she ordered the former White House counsel to obey a House subpoena, in an opinion whose central sentence entered the political vocabulary: 'Stated simply, the primary takeaway from the past 250 years of recorded American history is that Presidents are not kings.' Former aides, she continued, 'do not have subjects, bound by loyalty or blood, whose destiny they are entitled to control.' Two years of appellate wrangling followed before McGahn finally testified under an accommodation between the branches, but the sentence had done its work.

President Biden elevated her to the Court of Appeals for the District of Columbia Circuit in 2021, to the seat Merrick Garland had left to become Attorney General; the Senate confirmed her that June, 53–44, with Republicans Susan Collins, Lindsey Graham, and Lisa Murkowski in support. She had served barely a year when Justice Breyer, her old employer, announced his retirement in January 2022. Biden had promised in the 2020 South Carolina primary campaign to name a Black woman to the Court, and on February 25, 2022, he announced his former clerk's nomination. The choice had a family prehistory: in 2016, after Justice Scalia's death, her daughter Leila, then eleven, had written to President Obama asking him to add 'my mother, Ketanji Brown Jackson of the District Court, to the list,' a judge who 'is determined, honest, and never breaks a promise to anyone, even if there are other things she'd rather do.' Obama chose Merrick Garland instead, and the Senate chose no one; six years later the formal nomination of Leila's candidate went to the Senate on February 28. The March hearings turned less on her rulings than on her sentences: Republicans, led by Senator Josh Hawley, charged that her sentences in child-pornography cases ran below the federal guidelines, an attack that sentencing scholars answered by noting that most district judges' sentences in those cases do. The Judiciary Committee deadlocked eleven to eleven, the full Senate discharged the nomination, and on April 7, 2022, she was confirmed 53–47, with Collins, Murkowski, and Mitt Romney crossing over. At the White House the next day she gave the speech of the season: 'It has taken 232 years and 115 prior appointments for a Black woman to be selected to serve on the Supreme Court of the United States, but we've made it!' She quoted Maya Angelou, 'I am the dream and the hope of the slave,' and offered her family's compression of the American century: 'In my family, it took just one generation to go from segregation to the Supreme Court of the United States.' On June 30, 2022, minutes after Breyer's retirement took effect, she was sworn in as the 116th justice.

On the Supreme Court

She was audible immediately. In her first weeks of argument she spoke, by Empirical SCOTUS's count, more than twice as many words as any colleague, and the pattern held; that site's author, the political scientist Adam Feldman, later concluded that 'she's the only one that has ever done what she's doing in terms of total volume of speech in her first few terms.' Her first opinion, five weeks into her first sitting, was a dissent from a denial of review in a capital case, Chinn v. Shoop, joined by Sotomayor (§111); her first opinion for the Court, Delaware v. Pennsylvania in February 2023, was an original-jurisdiction dispute between states over abandoned MoneyGram checks, the traditional modest assignment for a newcomer. She took over Breyer's old duty as circuit justice for the First Circuit that September. Between the first dissent and the first majority lies the shape of her early service: a reliable workhorse for the full Court, and the most prolific dissenter on it.

Her first term produced the writings that defined her. In Allen v. Milligan she joined the majority preserving the Voting Rights Act's core and wrote a concurrence turning originalist method toward the Reconstruction amendments' purposes. In Health and Hospital Corporation v. Talevski she wrote the Court's opinion holding that nursing-home residents may sue under Section 1983 to enforce their federal rights. And in the affirmative-action cases she answered the majority's colorblind Constitution with a dissent, joined by Sotomayor and Kagan (§112), grounded in the history of what the government had done to Black wealth and health: 'deeming race irrelevant in law does not make it so in life.' She sat out the Harvard companion case, recused for her service on that university's Board of Overseers, so the dissent speaks in the North Carolina case; the point is often mislaid.

The dissents grew larger as the docket did. In Trump v. United States in 2024 she wrote separately to warn that presidential immunity creates a 'law-free zone' around the most powerful office in the country. In Trump v. CASA in June 2025, when the Court barred universal injunctions in the birthright-citizenship litigation, she dissented alone, writing that the majority's 'decision to permit the Executive to violate the Constitution with respect to anyone who has not yet sued is an existential threat to the rule of law.' Justice Barrett's (§115) majority opinion answered her by name: 'We will not dwell on JUSTICE JACKSON's argument, which is at odds with more than two centuries' worth of precedent, not to mention the Constitution itself. We observe only this: JUSTICE JACKSON decries an imperial Executive while embracing an imperial Judiciary.' An exchange that direct between a majority and a single dissenter is rare in the Reports; it measured how far the junior justice had moved to the center of the Court's argument with itself.

The numbers behind the reputation are stark. By the Supreme Court Database's coding, as computed for this site, she cast a liberal vote in 67.6 percent of her first three terms' cases against a 48.6 percent average for the sitting Court, and dissented in 23 percent of them, half again the contemporary rate. In the 2023 term she published 23 opinions, tied with Thomas (§106) for the most on the Court by Empirical SCOTUS's count. Yet the dissenter's caricature undercounts her. This site's coding of the 2025 term's seventy-one captioned decisions and orders finds her writing six opinions for the Court, four of them for a unanimous bench and one to a fractured one; standing alone in dissent in Chiles v. Salazar, eight to one; and voting with the majority, concurrence in hand, in several of the term's sharpest contests over presidential power, including the five-to-four decisions in Trump v. Barbara and Trump v. Cook, while in the tariff case, Learning Resources v. Trump, she concurred in the judgment while declining to join two parts of the Chief Justice's (§109) opinion. The same term, in Monsanto v. Durnell, she wrote a dissent joined only by Gorsuch (§113), an alignment no seating chart predicts.

Four terms cannot place a justice among one hundred sixteen, and this chapter does not try. What can be said is that no junior justice of the measured era has defined herself so completely so fast, in a voice built for audiences beyond the marble room: lower courts, Congress, and readers not yet born. Her memoir, Lovely One, reached the top of the best-seller lists in 2024 and put the family story into the permanent record in her own words. Whether her early years prove to be the opening chapter of a long dissenting tradition in the line of the first Harlan, or the foundation for majorities she has not yet been dealt the votes to write, is the one question her first four terms cannot answer. She continues to serve.

The Voting Record

How Jackson voted in the 179 cases the Supreme Court Database records from the 2022 term through the 2024 term, using that database’s classification of each vote as liberal or conservative. The gold tick on each bar is the rate for the other justices sitting on those same cases.

Liberal votes
67.6%
Contemporaries 48.6% — 19.0 points more liberal
Dissent rate
23.0%
Out of the majority in about 23 of every 100 cases; the rest of the bench, 15
Cases rated
170
Too short a record to rank against full careers
Criminal Procedure70.6%
34 cases · contemporaries 51.1% · 19.5 pts more liberal
Economic Activity57.4%
47 cases · contemporaries 43.9% · 13.5 pts more liberal

How liberal is Jackson? The full ideology profile: the record measured, the bloc mapped, and the 11 cases where Jackson broke from it.

Source · The Supreme Court Database (Spaeth, Epstein, Nelson, Martin, et al.) · how these figures are made

Key Decisions

Students for Fair Admissions v. Harvard

2023

Holding · (Dissenting) Ignoring race does not undo its measurable, entrenched effects; 'deeming race irrelevant in law does not make it so in life.'

Role · Jackson dissented in the North Carolina case, joined by Sotomayor and Kagan; she was recused from the Harvard companion, having served on Harvard's Board of Overseers.

Announced her as a major dissenting voice and framed the historical case against colorblind constitutionalism.

Read the opinion →

Trump v. United States

2024

Holding · (Dissenting) The majority creates a 'law-free zone' around the presidency, exempting the most powerful official from the accountability that governs everyone else.

Role · Jackson wrote a separate dissent.

A distinct structural warning about placing anyone beyond the reach of the criminal law.

Read the opinion →

Allen v. Milligan

2023

Holding · Alabama's congressional map likely violates the Voting Rights Act by diluting Black voting strength.

Role · Jackson joined the majority and wrote a concurrence grounding the Voting Rights Act in the Fourteenth Amendment's original purpose.

A surprising liberal victory preserving a core tool of the Voting Rights Act; Jackson's concurrence turned the originalist method toward racial justice.

Read the opinion →

Trump v. CASA, Inc.

2025

Holding · (Dissenting) With universal injunctions barred 6–3 in the birthright-citizenship litigation, Jackson wrote alone that the decision 'to permit the Executive to violate the Constitution with respect to anyone who has not yet sued is an existential threat to the rule of law.'

Role · Jackson filed a solo dissent; Barrett's majority answered her by name: 'JUSTICE JACKSON decries an imperial Executive while embracing an imperial Judiciary.'

A direct exchange between a majority and a single dissenter, rare in the Reports; it marked how central the junior justice had become to the Court's argument with itself.

Read the opinion →

Go Deeper

◆ Best Biography

Ketanji Brown Jackson is the first Black woman to serve on the Supreme Court of the United States and, since 2022, the most prolific voice of its liberal minority. The daughter of educators, a Harvard College and Harvard Law graduate, she brought to the bench a background unusual among modern justices: service as a federal public defender, the first justice with that experience since Thurgood Marshall (§96), and years on the U.S. Sentencing Commission and the federal trial and appellate benches. Appointed by Joe Biden to succeed Stephen Breyer (§108), for whom she had clerked, she was confirmed 53–47 after hearings in which her sentencing record was sharply contested. In her first terms she made an immediate mark, most notably in a dissent in the 2023 college-admissions cases, joined by Sotomayor (§111) and Kagan (§112), arguing that a colorblind reading of the Constitution ignores the entrenched effects of history, and in dissents on presidential power and the Court's emergency docket. Her 2024 memoir, Lovely One, tells her story in her own words. Begin there, then read the great early dissents that have quickly established her voice.

The Bookshelf

Best Place to Start
Lovely One: A Memoir
(2024) by Ketanji Brown Jackson

Jackson's bestselling memoir, and the natural introduction to the newest justice — its title the English meaning of her West African name, Ketanji Onyika. She writes of her parents' generation crossing from segregation into opportunity, her path through Harvard, her years as a public defender and judge, and the improbable arrival at the Court, weaving family history with the making of a jurist. Warm, candid, and reflective, it explains the perspective — especially her attention to the criminal-justice system from the defense side — that she brought to the bench. Random House.

History and the Colorblind Constitution

Jackson's landmark early dissent, in the case ending race-conscious college admissions. Answering the majority's colorblind reading of the Equal Protection Clause, she argued — with a wealth of historical and economic detail — that ignoring race does not undo its entrenched, measurable effects, and that 'deeming race irrelevant in law does not make it so in life.' Personal, data-rich, and unsparing, it announced her as a major dissenting voice and framed the argument against colorblind constitutionalism for the years ahead. Read it beside the majority and Sotomayor's dissent (§111) as the fullest liberal answer on race and the Constitution.

Accountability and the Presidency

Jackson's separate dissent from the decision granting former presidents broad immunity for official acts, written to press a distinct point: that the majority had created, in her words, a 'law-free zone' around the most powerful office in the country, exempting the president from the accountability that governs everyone else. Focused on the structural danger of placing anyone beyond the reach of the criminal law, it complements Sotomayor's dissent (§111) and shows Jackson's characteristic attention to how legal rules operate in the real world. Read it as a document in the era's argument over presidential power and equality before the law.

The Court She Joined

Joan Biskupic's account of the conservative supermajority supplies the institutional context for Jackson's arrival — a justice joining a Court whose six-to-three balance means her most important work, at least for now, is done in dissent. Well sourced and readable, it explains the dynamics she stepped into and the stakes of her role as one of three liberals on a Court moving decisively rightward. William Morrow. Read it alongside her memoir for both the personal and the institutional story.

The Reading Path

A researched route through the literature — in order.

  1. 1.
    Jackson, Lovely Onefor the life and perspective in her own words
  2. 2.
    Students for Fair Admissions v. Harvard dissentfor her landmark answer on race and the Constitution
  3. 3.
    Trump v. United States dissentfor her warning against a 'law-free zone' around the presidency
  4. 4.
    Biskupic, Nine Black Robesfor the conservative Court she joined

Where the Papers Are Kept

Not yet publicly available

Jackson is the newest justice and continues to serve; there is no archive of her judicial papers. Her life and outlook are documented in her own memoir, and her jurisprudence in the Court's published opinions and her early dissents; her prior service is reflected in the records of the U.S. Sentencing Commission and the federal district and circuit courts on which she sat. The Federal Judicial Center and Oyez provide the biographical and case record. Visit →

Ideas for Further Research

  • The public defender's perspective. Jackson is the first justice since Thurgood Marshall (§96) to have represented indigent criminal defendants, and she has said that experience shapes how she sees the law. Study whether and how a defense background surfaces in her opinions — on sentencing, criminal procedure, and the rights of the accused — and ask what range of professional experience the Court gains, and has often lacked, in its members.
  • History against colorblindness. Jackson's Harvard dissent mounts a historically grounded case that the Constitution permits, and the nation's past requires, attention to race in remedying entrenched inequality — the sharpest recent answer to the majority's colorblind reading. Set her argument beside Sotomayor's (§111) and against the Roberts (§109) and Thomas (§106) view, and ask which reading of the Fourteenth Amendment better fits its history and its purpose.
  • The power of the new dissenter. Joining a six-to-three Court, Jackson's most consequential early work is necessarily in dissent, addressed to lower courts, to Congress, and to the future. Study how a junior justice builds influence from the minority — through the force of her writing, her questioning at argument, and the arguments she plants for later — and ask what her first terms suggest about the role she may come to play over what could be decades on the Court. Seat lineage: Stephen Breyer §108Ketanji Brown Jackson → (still serving).

This Seat on the Court

Succeeded by
Incumbent — currently serving