Article III Federal Judges are appointed for life because that is how it was written into the US Constitution.
The reason the founders did that was to insulate the judges from politics, and the vicissitudes of public opinion, so they could be impartial in their judgment without fear of retaliation for an unpopular decision.
Another reason, or at least outcome, for the life terms of Supreme Court Justices is that they provide a lasting legacy of that president's term(s) and law(s). Presidents will almost always appoint judges who share interests similar to their own. There is a hope embedded into the justice to protect the ideology of the time.
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To put them at a level above the current political and social currents. If they had to be re-installed every time the party in power changed, then their decisions would be as tainted by the desire to preserve their jobs as that of mere politicians (which is considerably, IMHO).
If they have life tenure, then they can decide cases according to their interpretation of the law, and not be influenced by the fear that their judgments will cost them their positions.
The reason for the life term of federal judges is because it permits judges to be free from public or political pressures in deciding in cases.
The Constitution states that Article III federal judges' salaries may be not be "diminished," or reduced, during a judge's term of office; his or her salary may be increased, however.
It is so they won’t be influenced by political parties.
President ; they are approved by the Senate & they are appointed for life.
Federal judges are appointed for life, meaning that they hold their seats until they resign, die, or are (rarely) removed from office.
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A federal judge is appointed for "life" however they can be impeached. They are also required to abide by certain rules and regulations of course.
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To do so would violate Constitutional Law. Federal judges are appointed for life unless they are impeached for criminal actions.
Federal judges are appointed for life. There are no terms for them. Terms for state judges are determined by the constitution of the specific state.
The President has the power to appoint federal judges for life, and Congress confirms or denies the appointments. The federal courts' most important power is that of judicial review, the authority to interpret the Constitution.
Judges of the US Court of Federal Claims serve fifteen-year renewable terms.The US Court of Federal Claims is one of the US Special Courts Congress organized under its authority in Article I of the Constitution. Judges of US Special Courts serve fifteen-year renewable terms.
It is so they won’t be influenced by political parties.