Nixon v. United States, 506 U.S. 224 (1993)
Nixon v. United States is a landmark Supreme Court case that addresses the political question doctrine within the context of the impeachment process outlined in the Constitution.
Does the Senate's use of a committee to gather evidence and recommend an outcome in an impeachment trial violate the constitutional requirement that the Senate 'try' all impeachments, and is this issue justiciable by the courts?
The Constitution grants the Senate the 'sole Power to try all Impeachments,' suggesting that impeachment proceedings are committed solely to legislative discretion and are therefore not subject to judicial review under the political question doctrine.
The U.S. Supreme Court unanimously held that the constitutionality of the Senate's impeachment trial procedures is a political question not subject to judicial review.
Nixon v. United States is pivotal for law students as it underscores the limitations placed on judicial review through the political question doctrine. The decision illustrates how the separation of powers principle operates in practice, particularly in maintaining the distinct and autonomous functions of governmental branches. For those studying constitutional law, this case exemplifies a key precedent wherein the Court delineated the boundaries of its power and refrained from intervening in a process that the Constitution assigns explicitly to a political branch.