The pros and cons of Supreme Court lifetime appointments come down to a single tradeoff: tenure that lasts until death, retirement, or impeachment gives justices the freedom to rule without political fear, but it also hands unelected officials decades of influence with almost no accountability. Article III of the Constitution creates this arrangement by saying federal judges hold office “during good Behaviour,” language treated as permanent tenure since 1789.1Congress.gov. Good Behavior Clause Doctrine – Constitution Annotated Whether that structure still fits a country with longer lifespans and hyperpartisan confirmations is the question driving nearly every reform proposal on the table.
The Benefits of Lifetime Tenure
Independence From Political Pressure
The strongest argument for keeping the system is the one Alexander Hamilton made in Federalist No. 78. Hamilton called the judiciary the “least dangerous” branch because it controls neither the military nor the government’s money. Its only real power is judgment, and he argued that judgment could only be trusted if judges were permanently insulated from political retaliation. He warned that “periodical appointments, however regulated, or by whomsoever made, would in some way or other be fatal to their necessary independence.”2The Avalon Project. The Federalist Papers No. 78
A justice who never faces voters or reappointment has no reason to shade a ruling toward what’s politically popular. Congress also cannot cut a sitting justice’s pay, which blocks the most obvious form of financial arm-twisting.3Supreme Court of the United States. The Court as an Institution The result, in theory, is a court willing to protect unpopular rights and check the other branches even when doing so is politically costly. Justices appointed by one party’s president have sometimes become reliable votes for the other side’s priorities. That drift frustrates the president who made the appointment, but it is exactly what the system is designed to allow.
Legal Stability
Long tenures make constitutional doctrine evolve gradually rather than whipsawing with every election. Businesses, governments, and individuals can plan around a legal framework that will not be overturned every few years. Fixed terms could produce a court that reshuffles its approach to major constitutional questions on a regular schedule, which would inject uncertainty into everything from commercial contracts to civil rights protections.
Freedom to Take the Long View
Justices are not running for reelection, fundraising, or positioning themselves for a future appointment. That freedom lets them weigh the lasting consequences of their decisions rather than short-term political wins. Research on elected state judges consistently shows that sentencing patterns shift in the months before a retention election. The federal structure removes that incentive by design.
The Drawbacks of Lifetime Tenure
No Meaningful Accountability
Once confirmed, a justice answers to nobody. Impeachment by the House followed by conviction by two-thirds of the Senate is the only removal mechanism, and it has never actually removed a Supreme Court justice. The closest attempt came in 1805, when the Senate tried Justice Samuel Chase and acquitted him on every count.4United States Senate. Impeachment Trial of Justice Samuel Chase, 1804-05 There is no periodic performance review, no mechanism for voters to weigh in, and until 2023 the Court had never even adopted a formal ethics code. A justice whose reasoning grows sloppy or whose behavior raises ethical questions faces virtually no consequences short of public opinion, which the system was specifically designed to let them ignore.
Tenures Are Getting Much Longer
The framers wrote the “good Behaviour” clause when life expectancy at birth was under 40 years. Today, a justice appointed at 50 could realistically serve for 35 years or more. The historical average across all 116 justices is about 16 years of service.5Supreme Court of the United States. Frequently Asked Questions on Justices Since the early 1990s, average tenure has stretched past 25 years, making the United States a global outlier. Longer service also raises the question of cognitive decline. The responsibility for deciding when a justice is no longer fit to serve falls entirely on the justice, and someone experiencing diminished capacity may not be the best judge of their own abilities.
Strategic Retirement Games
Lifetime tenure was supposed to remove politics from the judiciary, but it has produced its own political dynamic: justices timing their departures to ensure a like-minded successor. Analysis of retirements since 1954 found that 62 percent of voluntary retirements went to ideologically similar presidents. When a justice retired under an ideological ally, the successor’s voting record averaged about 1.6 seats away on the Court’s ideological spectrum. When a justice was forced out under an ideologically distant president, the gap jumped to over 3 seats. Retirement becomes a strategic calculation rather than a personal decision, which is a strange byproduct of a system meant to depoliticize the judiciary.
A Superheated Confirmation Process
Because a single appointment can shape the law for decades, every vacancy has become a political crisis. In April 2017, the Senate eliminated the 60-vote filibuster threshold for Supreme Court nominees and moved to a simple majority vote. A slim Senate majority can now confirm a lifetime appointee without any support from the opposing party, amplifying the winner-take-all dynamic around each vacancy.
The randomness of when vacancies occur compounds the problem. A president who happens to see three justices leave during a single term can reshape the Court for a generation, while another president might get zero appointments. The distribution has nothing to do with elections or mandates and everything to do with the health and personal choices of aging justices.
How the United States Compares
Nearly every other major democracy limits the tenure of its highest court judges through fixed terms, mandatory retirement ages, or both. Germany’s Federal Constitutional Court uses 12-year nonrenewable terms. Canada imposes mandatory retirement at 75. Japan requires supreme court justices to face retention elections every ten years and sets mandatory retirement at 70. India’s mandatory retirement age is 65. Even Belgium, which formally appoints constitutional court judges “for life,” requires retirement at 70.6Federal Judicial Center. Judicial Tenure – Judiciaries Worldwide
No U.S. state mirrors the federal model of unlimited life tenure. Most state supreme court justices serve fixed terms ranging from six to fifteen years. Rhode Island is the only state that grants life tenure, and even Massachusetts, New Hampshire, and New Jersey, which do not use fixed terms, impose mandatory retirement at 70.
Reforms Being Discussed
Eighteen-Year Term Limits
The most widely discussed reform would give each new justice a single 18-year term, staggered so that one seat opens every two years. This would guarantee every president at least two appointments per term, eliminate the randomness of vacancies, and reduce the incentive to nominate the youngest possible candidate. A constitutional amendment along these lines was introduced in the Senate by Senators Manchin and Welch. Their version would not affect sitting justices and would make the chief justice role a rotating position based on seniority.7Senator Welch. Supreme Court Term-Limits Amendment Proposed by Sens. Manchin, Welch
A separate approach would try to achieve the same result through ordinary legislation. Under one version studied by President Biden’s commission, justices reaching 18 years would move to “senior status,” stepping off the Supreme Court bench to hear cases at lower federal courts and handle administrative work. Federal law already allows justices to sit on circuit courts. The statutory route avoids the enormous hurdle of ratifying a constitutional amendment, but the justices themselves might strike it down as unconstitutional.
Mandatory Retirement Age
Another approach would set a mandatory retirement age, commonly proposed at 70 or 75, mirroring the practice in most democracies. Proponents note that the Supreme Court itself upheld Missouri’s mandatory retirement age for state judges, finding it a rational response to the connection between aging and declining cognitive capacity. Whether Congress could impose such a requirement on federal justices without a constitutional amendment remains an open legal question.
Ethics and Transparency Requirements
The Supreme Court adopted its first formal code of conduct in November 2023, but critics noted it included no enforcement mechanism. The Supreme Court Ethics, Recusal, and Transparency Act, reintroduced in the Senate in May 2025, would require justices to follow gift disclosure and acceptance rules at least as strict as those governing members of Congress. It would also create new recusal requirements tied to gifts and confirmation-related spending, and would require recusal decisions to be reviewed by a panel of other judges rather than left entirely to the individual justice’s discretion.8U.S. Senate. Whitehouse, Johnson, Colleagues Reintroduce Supreme Court Ethics, Recusal, and Transparency Act
These ethics proposals do not directly change lifetime tenure. They respond to the accountability gap that tenure creates. If justices cannot be voted out or practically impeached, the argument goes, they should at least be subject to enforceable ethical standards while they serve.
The Tension That Keeps the Debate Alive
Judicial independence and democratic accountability pull in opposite directions. A perfectly independent court risks drifting out of touch with the society it serves. A perfectly accountable court risks becoming just another political institution that bends to whoever holds power at the moment. The framers erred heavily on the side of independence. Whether that balance still makes sense given modern lifespans, hyperpartisan confirmations, and the Court’s expanding role in American life is the question every reform proposal is trying to answer.