Delaware v. Pennsylvania and Wisconsin
598 U.S. 115 · Decided February 28, 2023 · Supreme Court of the United States
Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.
At a glance
Delaware v. Pennsylvania and Wisconsin was decided on February 28, 2023 unanimously (9–0). Justice Ketanji Brown Jackson wrote the opinion of the Court. SCDB classifies its main issue as “Non-real property dispute between states” in the Interstate Relations area.
Read the opinion
Case details
- Citations
- 598 U.S. 115 · 143 S. Ct. 696 · 215 L. Ed. 2d 24 · 2023 U.S. LEXIS 1037
- Docket number
- 22O145
- Decided
- February 28, 2023
- Argued
- October 3, 2022
- Court era
- Roberts Court
- Decision type
- Opinion of the Court (orally argued)
- Outcome for petitioner
- The petitioning party did not receive a favorable disposition
- Vote
- 9–0 (unanimous)
- Majority opinion
- Ketanji Brown Jackson
- Opinion assigned by
- John G. Roberts Jr.
- How the case arrived
- Original jurisdiction
- Issue (SCDB)
- Non-real property dispute between states
- Issue area
- Interstate Relations
- Legal provision
- Article III, Section 2, Paragraph 2 (original jurisdiction)
- Type of law
- Constitution
- Decision direction (SCDB)
- Unspecifiable what this means
How the Justices voted
| Justice | Vote | Separate writing |
|---|---|---|
| Justice Clarence Thomas | Majority | |
| Chief Justice John G. Roberts Jr. | Majority | |
| Justice Samuel A. Alito Jr. | Majority | |
| Justice Sonia Sotomayor | Majority | |
| Justice Elena Kagan | Majority | |
| Justice Neil M. Gorsuch | Majority | |
| Justice Brett M. Kavanaugh | Majority | |
| Justice Amy Coney Barrett | Majority | |
| Justice Ketanji Brown Jackson | Majority | Wrote an opinion |
Full case caption
Delaware v. Pennsylvania and Wisconsin
SCDB identifiers: case 2022-002, docket 2022-002-01.
Related decisions
Other cases on “Non-real property dispute between states”
- Florida v. Georgia
- Texas v. New Mexico
- Florida v. Georgia
- State of Montana v. State of Wyoming and State of North Dakota
- State of Montana v. State of Wyoming and State of North Dakota
- State of South Carolina v. State of North Carolina
Cases on the same legal provision: Article III, Section 2, Paragraph 2 (original jurisdiction)
Same Term, same area (Interstate Relations)
Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error