State & history
How long can federal judges, including Supreme Court justices, serve once they are confirmed?
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A Four years, with one chance to be renewed
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B Ten years, then they must retire
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✕ Until the President who chose them leaves office Your answer
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✓ For life, as long as they show good behavior
Not quite.
Article III of the Constitution says federal judges hold office "during good behavior." In practice this means for life unless they resign, retire or are impeached and removed. This protects judges from political pressure.
Source: U.S. Constitution, Article III, Section 1