CaseTrail

Justice Sonia Sotomayor

Voting and opinion record for Sonia Sotomayor in the Supreme Court Database, covering the 2009 through 2025 Terms.

1,205decisions participated in
78%in the majority
265dissenting votes
114majority opinions written

Court eras served in this data: Roberts Court.

Majority opinions by issue area

Most often on the same side

JusticeSame sideCases together
Ketanji Brown Jackson93.0%244
Elena Kagan90.4%1,068
Ruth Bader Ginsburg89.9%821
Stephen G. Breyer87.1%945
John Paul Stevens83.5%85

Least often on the same side

JusticeSame sideCases together
Clarence Thomas58.7%1,195
Samuel A. Alito Jr.60.1%1,186
Neil M. Gorsuch60.8%595
Amy Coney Barrett65.9%361
Antonin Scalia66.5%486

“Same side” means both Justices were in the majority, or both in dissent, in decisions where both voted; pairs with fewer than 50 shared decisions are left out.

Majority opinions written (114)

Dissents in argued cases (most recent 30 of 250)

Search all opinions by Justice Sotomayor

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