The U.S. Supreme Court rules that the Communications Decency Act violates the First Amendment to the United States Constitution.

The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all U.S. federal court cases, and over state court cases that turn on questions of U.S. constitutional or federal law. It also has original jurisdiction over a narrow range of cases, specifically "all Cases affecting Ambassadors, other public Ministers and Consuls, and those in which a State shall be Party." In 1803, the court asserted itself the power of judicial review, the ability to invalidate a statute for violating a provision of the Constitution via the landmark case Marbury v. Madison. It is also able to strike down presidential directives for violating either the Constitution or statutory law.

The Communications Decency Act of 1996 (CDA) was the United States Congress's first notable attempt to regulate pornographic material on the Internet. In the 1997 landmark case Reno v. ACLU, the United States Supreme Court unanimously struck the act's anti-indecency provisions.

The First Amendment to the United States Constitution prevents Congress from making laws respecting an establishment of religion; prohibiting the free exercise of religion; or abridging the freedom of speech, the freedom of the press, the freedom of assembly, or the right to petition the government for redress of grievances. It was adopted on December 15, 1791, as one of the ten amendments that constitute the Bill of Rights. In the original draft of the Bill of Rights, what is now the First Amendment occupied third place. The first two articles were not ratified by the states, so the article on disestablishment and free speech ended up being first.