Breyer served as an Associate Justice on the U.S. Supreme Court from 1994 to 2022.

He was considered a liberal-leaning justice, notable for his support of LGBT rights in Supreme Court cases.

• In one notable case, Boy Scouts of America v. Dale, he joined Justice Stevens's dissent against the majority in favor of James Dale, an openly homosexual man who wished to serve as a Boy Scout leader.

• In his early career, Breyer served as a law clerk for Supreme Court Justice Arthur Goldberg.