New York Times Co. v. Sullivan, 376 U.S. 254 (1964), was a landmark U.S. Supreme Court decision ruling that the First Amendment to the U.S. Constitution's freedom of speech protections limit the ability of American public officials to sue for defamation. The decision held that if a plaintiff in a defamation lawsuit is a public official or candidate for public office, not only must they prove the normal elements of defamation—publication of a false defamatory statement to a third party—they must also prove that the statement was made with "actual malice", meaning the defendant either knew the statement was false or recklessly disregarded whether it might be false.