- Pennsylvania State Police v. Suders (Ft. Justice Ruth Bader Ginsburg)
- People of the State of New York Ex Rel. Amoskeag Savings Bank of Manchester, New Hampshire, Plff. In Err. v. Lawson Purdy and Others, Commissioners of Taxes and Assessments of the City of New York
- Philadelphia v. New Jersey (Ft. Justice Potter Stewart)
- Pierce v. Society of Sisters (Ft. James Clark McReynolds)
- Pike v. Bruce Church, Inc. (Ft. Justice Potter Stewart)
- Pinkerton v. United States (Ft. William Douglas)
- Planned Parenthood of Southeastern Pa. v. Casey (Ft. Justice Kennedy, Justice Souter Announced the Judgment of the Court And & O'Connor)
- Powell v. McCormack (Ft. Chief Justice Earl Warren)
- Printz v. United States (Ft. Scalia)
- Pruneyard Shopping Center v. Robbins (Ft. William Rehnquist)
- Rasul v. Bush (Ft. Justice John Paul Stevens)
- Reno v. Condon (Ft. Chief Justice William Rehnquist)
- Richmond v. JA Croson Co. (Ft. Sandra Day O'Connor)
- Romer v. Evans (Ft. Justice Anthony Kennedy)
- Roper v. Simmons (Ft. Justice Anthony Kennedy)
- Sawyer v. Whitley (Ft. Chief Justice William Rehnquist)
- Schlup v. Delo (Ft. Justice John Paul Stevens)
- Schuette v. Coalition to Defend Affirmative Action, Integration and Immigrant Rights
- Seminole Tribe of Fla. v. Florida (Ft. Rehnquist)
- Shaffer v. Heitner (Ft. Justice Thurgood Marshall)