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Samuel Chase was the only supreme court justice to be impeached.
If the President is the one impeached, the Chief Justice of the Supreme Court presides over the trial.
When a vacancy occurs because a sitting justice retires, resigns, dies or is impeached and convicted.Only one US Supreme Court justice, Samuel Chase, has ever been impeached, but he was acquitted at trial.
There is no specific term limit for a Supreme Court justice. They are appointed for life, unless they choose to retire or are impeached.
The chief justice of the US presides of the trial if the president is impeached.