Judges reach the bench in one of two broad ways: they are appointed by an executive with legislative confirmation, or they are elected by voters, with the exact path depending on the court and the state. Once seated, they run cases from the first filing through final judgment, rule on what evidence a jury can hear, decide legal questions, and operate under ethics rules that most other government officials never face. How judges are chosen and what they do differs sharply between the federal system and the fifty state systems, and even within each system depending on the type of court.
Who Can Become a Judge
Almost every path to a judgeship starts with a Juris Doctor degree from an accredited law school, followed by passing a state bar exam. Most judicial positions then require significant courtroom experience. State thresholds commonly fall between five and ten years of active law practice before a candidate is eligible for the bench. Many states also set minimum age requirements ranging from 25 to 35 depending on the level of court, and residency requirements are common.
At the federal level, the Constitution is silent on qualifications. Article III says nothing about education, bar membership, or years of experience for Supreme Court justices or other federal judges.1Constitution Annotated. Article III Judicial Branch In practice, the nomination and confirmation process filters heavily for credentials, and every sitting federal judge holds a law degree. But there is no legal requirement.
Federal magistrate judges are the exception. Under 28 U.S.C. § 631, a magistrate judge must have been a member in good standing of a state’s highest court bar for at least five years before appointment.2Office of the Law Revision Counsel. 28 USC 631 – United States Magistrate Judges
How Federal Judges Are Chosen
The Appointments Clause in Article II gives the president power to nominate federal judges, subject to the advice and consent of the Senate.3Constitution Annotated. Overview of Appointments Clause Once a nominee is announced, the FBI conducts a background investigation covering personal history, finances, and professional record. The Senate Judiciary Committee then holds hearings, questioning the nominee on judicial philosophy, past decisions, and temperament. If the committee votes favorably, the full Senate votes on confirmation. A simple majority is enough to seat the judge for a lifetime appointment.4United States Courts. Types of Federal Judges
Not every federal judge follows that path. Magistrate judges are appointed by the district court judges themselves and serve eight-year renewable terms.2Office of the Law Revision Counsel. 28 USC 631 – United States Magistrate Judges Bankruptcy judges are appointed by circuit court judges and serve 14-year terms. Administrative law judges work inside executive agencies rather than the courts, hearing Social Security disability claims, immigration matters, workplace safety cases, and other regulatory disputes. Executive Order 13843 in 2018 gave individual agencies more control over their own ALJ hiring, replacing an earlier centralized examination process run by the Office of Personnel Management.5U.S. Office of Personnel Management. Administrative Law Judges None of these judges hold Article III lifetime appointments.
How State Judges Are Chosen
States take a range of approaches to filling their benches, and many states use different methods for different court levels. The main systems are contested elections (either partisan or nonpartisan), gubernatorial appointment, and merit selection.
Under merit selection, sometimes called the Missouri Plan, an independent nominating commission evaluates candidates and sends a short list to the governor, who picks from it. Judges seated through this process typically face periodic retention elections, where voters decide on a simple yes-or-no basis whether the judge should keep the seat. About 19 states use retention elections in some form.
The elected-judge model is distinctly American. Most other countries appoint judges exclusively. States that elect judges set fixed terms, and sitting judges who want to stay must either win re-election or survive a retention vote.
What Judges Do Once Seated
The visible part of the job, presiding over a trial, is only a slice of the work. Before any trial begins, judges manage a sprawling pretrial process: ruling on motions to dismiss or suppress evidence, overseeing discovery so both sides share relevant information, and resolving disputes about what issues will actually go to trial. These pretrial decisions often shape the outcome more than the trial itself, because they determine what evidence the jury will see and what legal theories remain in play.
During trial, the judge acts as gatekeeper for evidence, deciding what meets legal standards for relevance and reliability. When a jury is present, the judge instructs jurors on the applicable law and keeps them focused on admissible evidence. In a bench trial, where the parties waive a jury, the judge takes on the additional role of fact-finder, weighing witness credibility and rendering a verdict directly.
Outside of trials, judges handle a steady flow of administrative work. They sign search warrants based on probable cause showings from law enforcement, set bail for criminal defendants based on flight risk and community safety, and approve plea agreements. Each decision is documented through written orders or oral rulings on the record, creating a trail of reasoning that appellate courts can later review.
Judges also hold contempt power, one of the judiciary’s most direct enforcement tools. A judge can sanction someone for disruptive behavior in the courtroom or for violating a court order outside the courtroom, with different procedural protections attaching to each.6Justia. The Contempt Power
Federal magistrate judges take on much of the day-to-day work in district courts: initial appearances for criminal defendants, bail settings, discovery disputes, and other pretrial matters. In civil cases, magistrate judges can conduct full trials if both parties consent.
Ethics Rules That Govern the Job
Public trust in the judiciary rests on judges following strict ethical rules both on and off the bench. Two frameworks set the standard: the Code of Conduct for United States Judges governs federal judges,7United States Courts. Code of Conduct for United States Judges and the ABA Model Code of Judicial Conduct provides a template most states have adopted or adapted for their own judiciaries.8American Bar Association. Model Code of Judicial Conduct Both revolve around four principles: independence, impartiality, avoiding conflicts of interest, and staying out of inappropriate political activity.
One of the most important prohibitions is the ban on ex parte communications. A judge cannot have private conversations with one side of a case without the other side present. Rule 2.9 of the ABA Model Code covers this, and it applies whether the communication happens in person, by phone, by email, or through intermediaries.
Recusal
Federal law requires a judge to step aside from any case where their impartiality could reasonably be questioned. Under 28 U.S.C. § 455, disqualification is mandatory when a judge has a personal bias concerning a party, a financial interest in the outcome, prior involvement in the matter as a lawyer, or a close family connection to anyone involved in the case.9Office of the Law Revision Counsel. 28 USC 455 – Disqualification of Justice, Judge, or Magistrate Judge The statute casts a wide net. Even ownership of a single share of stock in a corporate party triggers disqualification. Judges also have an affirmative duty to stay informed about their own financial interests and those of their spouse and minor children living at home.
Financial Disclosure
Federal judges must file annual financial disclosure reports under the Ethics in Government Act, covering income, gifts, real estate, investments, and outstanding liabilities.10Office of the Law Revision Counsel. 5 USC Chapter 131, Subchapter I – Financial Disclosure Requirements of Federal Personnel The requirement applies to every judicial officer from magistrate judges through Supreme Court justices. Reports are filed with the Administrative Office of the U.S. Courts and made available to the public through an online database.11United States Courts. Judiciary Financial Disclosure Reports
Immunity From Being Sued Over Rulings
Judges have absolute immunity from civil lawsuits for actions taken in their judicial capacity. A judge cannot be sued for money damages over a ruling, even if the ruling was legally wrong or procedurally flawed.12Justia. Judicial Immunity from Suit The Supreme Court set the standard in Stump v. Sparkman, holding that a judge loses immunity only when acting in the “clear absence of all jurisdiction.” The doctrine exists so judges decide cases on the law rather than on the risk of retaliatory litigation. It is not unlimited: a judge acting in a purely administrative capacity, or completely outside anything resembling a judicial function, does not get the shield.
How Long Judges Serve
Article III judges hold office “during good Behaviour,” which in practice means a lifetime appointment.1Constitution Annotated. Article III Judicial Branch There is no mandatory retirement age for federal judges, and their salary cannot be reduced while they remain in office. The Founders wanted judges insulated from political pressures that come with re-election cycles or term expirations.4United States Courts. Types of Federal Judges
Rather than fully retiring, many federal judges transition to senior status, a form of semi-retirement with a reduced caseload. Eligibility follows the informal Rule of 80: a judge’s age plus years of federal judicial service must equal at least 80, with the youngest eligible age being 65 with 15 years of service and scaling to age 70 with 10 years.13Office of the Law Revision Counsel. 28 USC 371 – Retirement on Salary; Retirement in Senior Status Judges on senior status keep their full salary and free up their seat for a new appointment.
State systems work differently. Forty-seven states set fixed terms for their supreme court justices, ranging from 6 to 14 years with an average around 8. Trial court terms tend to be shorter. Judges who want to continue serving must go through whatever reselection process the state uses. About 32 states also impose mandatory retirement ages, typically between 70 and 75.
Discipline and Removal
Because Article III judges serve for life, removing one is deliberately difficult. The only constitutional mechanism is impeachment by the House followed by conviction by the Senate for “Treason, Bribery, or other high Crimes and Misdemeanors.”14Constitution Annotated. Judicial Impeachments The Senate can convict even if the judge was acquitted of the same conduct in a criminal trial; double jeopardy protections do not apply to impeachment.
Short of impeachment, the Judicial Conduct and Disability Act provides a complaint process for lesser misconduct. Anyone can file a written complaint with the clerk of the relevant circuit court of appeals alleging that a judge engaged in conduct harmful to the administration of justice or is unable to perform their duties due to a mental or physical disability.15Office of the Law Revision Counsel. 28 USC 351 – Complaints; Judge Defined The chief judge of the circuit reviews the complaint and can dismiss it, resolve it informally, or convene a special committee to investigate. In serious cases, the Judicial Conference can certify to the House that impeachment may be warranted.
State judicial discipline generally operates through judicial conduct commissions, independent bodies that investigate complaints, hold hearings, and impose sanctions ranging from private warnings through public reprimand, suspension without pay, and removal. Commissions cannot overturn a judge’s legal decisions, but they can act on behavior that undermines public confidence, including bias, discourtesy, conflicts of interest, and off-bench misconduct. Most states also allow impeachment through their state legislatures for the most serious offenses.
Pay
Federal judges earn salaries set by Congress and adjusted periodically. As of 2026, a U.S. district court judge earns $249,900 per year.16Federal Judicial Center. Judicial Salaries – US District Court Judges Circuit court judges and Supreme Court justices earn progressively more. State judicial salaries vary widely with the level of court, the state’s cost of living, and legislative appropriations. Trial court judges in lower-cost states may earn well under $150,000, while justices on state supreme courts in large states can earn more than $200,000. Across both systems, judges are generally prohibited from earning outside income from practicing law, though limited income from teaching, writing, and investments is typically permitted within the ethics rules.