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Official portrait of Ketanji Brown Jackson

Supreme Court · Associate Justice

Ketanji Brown Jackson

Constitutional structure and accountability

Age56
Appointed byJoseph R. Biden, Jr.
Joined the Court2022

The essentials

At a Glance

Jackson joined the Court in 2022 after serving on the federal district court and D.C. Circuit. Her earlier work included federal public defense and service on the U.S. Sentencing Commission.

An appointed, life-tenured judicial office. Decisions reflect legal judgments in particular cases.

Official biography ↗

Background

Roots

Born September 14, 1970 in Washington, D.C..

Hometown / early roots: Miami, Florida. Source ↗

Education

  • Harvard University
    A.B., 1992 · Undergraduate
  • Harvard Law School
    J.D., 1996 · Graduate / professional

Career timeline

  1. 2005–2007

    Assistant federal public defender in Washington, D.C.

  2. 2010–2014

    Vice Chair and Commissioner, U.S. Sentencing Commission.

  3. 2013–2021

    Judge, U.S. District Court for the District of Columbia.

  4. 2021–2022

    Judge, U.S. Court of Appeals for the D.C. Circuit.

  5. 2022–present

    Associate Justice of the Supreme Court.

Judicial Philosophy

Constitutional structure and accountability

Her separate Trump dissent examines presidential accountability through constitutional structure and the traditional framework of individual legal responsibility. Her Rahimi concurrence also discusses how courts apply historical tests. These are case-based illustrations, not a comprehensive ideological score.

This is a description of interpretive methods, illustrated by opinions below. It is not a party label or a prediction of every vote.

Selected record

Major Supreme Court Decisions

Only cases in which Jackson participated are included. A vote on a legal question does not establish a personal belief.

The Court affirmed the preliminary-injunction ruling against Alabama’s map, applying the established vote-dilution framework under Section 2. The decision concerned the specific record and did not require proportional representation nationwide.

5–4 · Kavanaugh joined the judgment and the opinion except Part III–B–1. This summary describes the 2023 decision, not later litigation over Alabama’s maps.

Read the opinion ↗

The Court held that the First Amendment barred compelling the custom expressive speech at issue. The ruling addressed the stipulated expressive services, not a general exemption from all public-accommodation laws.

6–3 ·

Read the opinion ↗

The Court rejected Rahimi’s facial challenge to the federal firearm restriction at issue. It explained that historical analogies need not be exact replicas, while retaining Bruen’s history-based framework.

8–1 ·

Read the opinion ↗

The Court recognized absolute immunity for conduct within exclusive constitutional authority, presumptive immunity for other official acts, and no immunity for unofficial acts. It remanded for application of that framework.

6–3 · Barrett joined the Court’s opinion except Part III–C, concerning use of official-act evidence. Sotomayor’s dissent was joined by Kagan and Jackson; Jackson also wrote separately.

Read the opinion ↗

Notable Opinions

“To the extent that the majority’s new accountability paradigm allows Presidents to evade punishment for their criminal acts while in office, the seeds of absolute power for Presidents have been planted.”
Trump v. United States
Dissenting opinion · 2024-07-01

Jackson warns about the accountability consequences of the majority’s immunity framework.

Verified opinion · PDF page 117 ↗

Key Constitutional Issues

Explore the legal questions and case-specific votes behind these issues. Some cases interpret statutes rather than the Constitution.