In the United States impeachment can occur both at the federal and state level. At the federal level, both the executive branch and the judiciary may be impeached, though different standards apply. For the executive branch, only those who have allegedly committed "reason, bribery, or other high crimes and misdemeanors" may be impeached. Although treason and bribery are obvious, the Constitution is silent on what constitutes a "high crime." Several commentators have suggested that Congress alone may decide for itself what constitutes an impeachable offense.
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