Choose two landmark Supreme Court cases that address the issue of free speech in the United States. In your response, compare the facts of each case, the constitutional principles involved, and the impacts of these decisions on American political discourse and civil rights.
Be sure to identify the constitutional amendments at issue and explain how the Court's rulings in these cases reflect differing interpretations of free speech. Your answer should discuss the context of each case and provide insight into the evolution of free speech protections.
Note: The provided solution includes an example of a perfect-score answer and explanation. Your response will not be scored.