The First Amendment is the cornerstone of media law in the United States. It protects freedom of speech, press, religion, assembly, and petition, ensuring a free flow of information in a democratic society. However, these rights come with limitations and responsibilities. Media law has evolved through landmark court cases and legislation. From early press freedom cases to modern challenges like online misinformation, journalists must navigate complex legal and ethical issues while fulfilling their role as watchdogs over government and powerful interests.