This document summarizes key Supreme Court rulings that defined the reach of the landmark 1964 libel case Times v. Sullivan. It discusses how the actual malice standard was extended to public figures and limited public figures in 1967. It also outlines how the standard applied to private figures in public controversies from 1971 to 1974. Additionally, it describes Supreme Court cases that further defined what constitutes actual malice, reckless disregard, opinion versus facts, and defenses in libel cases.