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Daniel Coleman v. Court of Appeals of Maryland

566 U.S. 30 · Decided March 20, 2012 · 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

Daniel Coleman v. Court of Appeals of Maryland was decided on March 20, 2012 by a vote of 5–4. The Court affirmed the lower court's decision. Justice Anthony M. Kennedy wrote the opinion announcing the judgment of the Court. SCDB classifies its main issue as “National supremacy, marital and family relationships” in the Federalism area. SCDB records that the Court declared an act of Congress unconstitutional.

Read the opinion

Case details

Citations
566 U.S. 30 · 132 S. Ct. 1327 · 182 L. Ed. 2d 296 · 2012 U.S. LEXIS 2315
Docket number
10-1016
Decided
March 20, 2012
Argued
January 11, 2012
Court era
Roberts Court
Decision type
Judgment of the Court (orally argued)
Disposition
Affirmed
Outcome for petitioner
The petitioning party did not receive a favorable disposition
Vote
5–4
Majority opinion
Anthony M. Kennedy
Opinion assigned by
John G. Roberts Jr.
How the case arrived
Certiorari
Issue area
Federalism
Legal provision
Fourteenth Amendment (enforcement clause)
Type of law
Constitutional amendment
Held unconstitutional
An act of Congress
Decision direction (SCDB)
Conservative what this means

How the Justices voted

JusticeVoteSeparate writing
Justice Antonin ScaliaSpecial concurrenceWrote an opinion
Justice Anthony M. KennedyMajorityWrote an opinion
Justice Clarence ThomasMajority
Justice Ruth Bader GinsburgDissentWrote an opinion
Justice Stephen G. BreyerDissent
Chief Justice John G. Roberts Jr.Majority
Justice Samuel A. Alito Jr.Majority
Justice Sonia SotomayorDissent
Justice Elena KaganDissent

Full case caption

Daniel Coleman, Petitioner v. Court of Appeals of Maryland et al.

SCDB identifiers: case 2011-032, docket 2011-032-01.

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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