CaseTrail

Justice Anthony M. Kennedy

Voting and opinion record for Anthony M. Kennedy in the Supreme Court Database, covering the 1987 through 2017 Terms.

2,814decisions participated in
92%in the majority
233dissenting votes
276majority opinions written

Court eras served in this data: Rehnquist Court, Roberts Court.

Majority opinions by issue area

Most often on the same side

JusticeSame sideCases together
William H. Rehnquist87.4%1,768
John G. Roberts Jr.86.2%1,004
Neil M. Gorsuch85.4%89
Sandra Day O'Connor85.2%1,786
Samuel A. Alito Jr.83.3%965

Least often on the same side

JusticeSame sideCases together
Thurgood Marshall56.1%474
William J. Brennan Jr.58.8%352
John Paul Stevens66.1%2,179
Harry A. Blackmun67.4%809
Ruth Bader Ginsburg74.4%2,079

“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 (276)

Dissents in argued cases (most recent 30 of 227)

Search all opinions by Justice Kennedy

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