Final answer:
Incompetence is not listed as an impeachable offense in the Constitution; only Treason, Bribery, and other high Crimes and Misdemeanors are mentioned as grounds for impeachment.
Step-by-step explanation:
The Constitution does not list incompetence as an impeachable offense. The impeachable offenses that are mentioned include Treason, Bribery, or other high Crimes and Misdemeanors. The term "high crimes and misdemeanors" provides flexibility to encompass various forms of serious misconduct by civil officers that may not necessarily be criminal offenses but are still considered serious enough to warrant impeachment.
In the history of the United States, Presidents Andrew Johnson and Bill Clinton were impeached, and Richard Nixon resigned before facing inevitable impeachment.
The charges against them spanned a range of allegations, including abuse of power and obstruction of justice, but none was charged with incompetence as an impeachable offense. As outlined by the Constitution, impeachment is a key check on government officials, ensuring that they are not above the law and providing a process for removal from office in cases of significant misconduct.