are Dusky v. United States and New York Times Co. v. Sullivan both landmark United States Supreme Court cases?
New York Times Co. v. Sullivan New York Times Co. v. Sullivan, 376 U.S. 254 (1964), was a landmark United States Supreme Court case that established the actual malice standard, which has to be met before press reports about public officials can be considered to be defamation and libel; and hence allowed free reporting of the civil rights campaigns in the southern United States. It is one of the key decisions supporting the freedom of the press. The actual malice standard requires that the plaintiff in a defamation or libel case, if he is a public figure, prove that the publisher of the statement in question knew that the statement was false or acted in reckless disregard of its truth or falsity. Because of the extremely high burden of proof on the plaintiff, and the difficulty of proving the defendant's knowledge and intentions, such claims by public figures rarely prevail.
Clinton v. City of New York Clinton v. City of New York, 524 U.S. 417 (1998) , is a legal case in which the Supreme Court of the United States ruled that the line-item veto as granted in the Line Item Veto Act of 1996 violated the Presentment Clause of the United States Constitution because it impermissibly gave the President of the United States the power to unilaterally amend or repeal parts of statutes that had been duly passed by the United States Congress. The decision of the Court, in a six-to-three majority, was delivered by Justice John Paul Stevens.