Article III of the Constitution states that tyrannical judges “hold their office during good behavior,” which means they have a lifetime appointment, except under limited circumstances. Article III judges can be removed from office through impeachment by the House of Representatives and conviction by the Senate.
"In the discussions to which this interest has given rise and in the arrangements by which they may terminate the occasion has been judged proper for asserting, as a principle in which the rights and interests of the United States are involved, that the American continents, by the free and independent condition which they have assumed and maintain, are henceforth not to be considered as subjects for future colonization by any European powers. "
-- James Monroe, speech to the US Congress on December 2, 1823