Answer:
Members of the Supreme Court are appointed by the President subject to the approval of the Senate. To make sure an freelance Judiciary and independent judges from partisan pressures, the Constitution provides that judges serve throughout good Behaviour, that has typically meant life terms. The primary goal of life tenure is to insulate the officeholder from external pressures. sure heads of state, like monarchs and presidents always, are given life tenure. US federal judges have life tenure once appointed by the president and confirmed by the Senate.
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