The Supreme Court’s First Amendment docket has changed more radically than the familiar doctrinal narratives suggest. The mid-century Court confronted a recurring cluster of disputes involving subversive advocacy, loyalty programs, protest, obscenity, defamation, and press liability. The contemporary docket is organized around a different set of problems: viewpoint discrimination, retaliation, compelled expression, government speech, campaign regulation, professional restrictions, religious exclusions, and disputes over the public-private boundary.
That shift is important to note at an empirical level because doctrinal accounts of First Amendment development have a tendency to emphasize changes in doctrine while holding the underlying universe of disputes relatively constant. The data suggest that the universe itself moved. Some of the subjects that generated a large share of the Court’s postwar First Amendment work virtually disappeared, while categories that were marginal or nonexistent in the Warren and early Burger Courts became central to the Roberts Court. The resulting jurisprudence reflects changes in both the Court’s constitutional rules and the problems those rules were being asked to solve.
Using Supreme Court decisions from 1946 forward with data supplied by the Supreme Court Database, supplemented by the current Term, the analysis tracks three related changes: the substantive composition of the First Amendment docket, the identity and posture of the litigants, and the direction and mechanism of constitutional protection. The analysis treats protection as a domain-specific question rather than reducing the Court to a single “pro-First Amendment” score. That approach makes it possible to identify how the Amendment’s general center of gravity shifted across time—and to separate broad changes in speech protection from sharper movements within particular doctrinal fields.