Terms of Supreme Court Justices?

Question

Terms of Supreme Court Justices?

Answer 1

Lifetime appointments.

Answer 2

During period of good behavior.  While life is the norm, until retirement or death, impeachment for high crimes and misdemeanors pursuant to the Constitution cuts short an otherwise lifetime tenor.  While rare, a handful of federal judges accused or convicted of breaking the law have been successfully impeached by the House AND removed by the Senate.

I agree for defense of their term in office see Federalist 78.  See also Montesquieu "Spirit of the Laws" for a defense of Separation of Powers.

Answer 3

Federal judges, including those on the Supreme Court, are appointed for life, specifically so that they will be independent of political pressure. It's in the Constitution.