Final answer:
Article III of the U.S. Constitution establishes that Supreme Court and other federal judges hold office during good behavior, which is typically interpreted as a life term. They can only be removed if they are impeached; to date, fifteen federal judges have been impeached.
Step-by-step explanation:
Understanding the Tenure of Federal Judges Under Article III
“Judges, both of the Supreme Court and Inferior Courts should hold their Offices during good behavior.” This statement in Article III Section I means that appointed judges serve for life, or until they choose to resign, retire, or upon their death. This lifetime appointment serves as a cornerstone of judicial independence, allowing judges to make decisions free from political pressures. If a situation arises where a judge must be removed from office for misconduct or criminal behavior, it must be done through the impeachment process, which involves a trial in the Senate. With regard to your query, only fifteen Federal Judges have ever been impeached. This is indicative of the stability and longevity typically associated with federal judicial appointments.