who has the power to remove a supreme court justice
Supreme Court of the United States The Constitution provides that justices "shall hold their offices during good behavior" (unless appointed during a Senate recess). The term "good behavior" is understood to mean justices may serve for the remainder of their lives, unless they are impeached and convicted by Congress, resign, or retire.[91] Only one justice has been impeached by the House of Representatives (Samuel Chase, March 1804), but he was acquitted in the Senate (March 1805).[92] Moves to impeach sitting justices have occurred more recently (for example, William O. Douglas was the subject of hearings twice, in 1953 and again in 1970; and Abe Fortas resigned while hearings were being organized in 1969), but they did not reach a vote in the House. No mechanism exists for removing a justice who is permanently incapacitated by illness or injury, but unable (or unwilling) to resign.[93]
Chief Justice of the United States The Chief Justice leads the business of the Supreme Court and presides over oral arguments. When the court renders an opinion, the Chief Justice—when in the majority—decides who writes the court's opinion. The Chief Justice also has significant agenda-setting power over the court's meetings. In the case of an impeachment of a President of the United States, which has occurred twice, the Chief Justice presides over the trial in the U.S. Senate. Additionally, the presidential oath of office is typically administered by the Chief Justice (although the Constitution does not assign this duty to anyone in particular).