Two courts must usually act first, and then the Supreme Court itself must choose you: of the thousands who ask each term, roughly one in a hundred is heard.
The Supreme Court is not a place you file a lawsuit. With narrow exceptions, cases arrive only after a full run through the lower courts, federal or state, and only if at least four justices decide the legal question matters beyond the parties. Here is the standard federal path, with the alternates marked.
Federal courts decide only 'Cases' and 'Controversies': a plaintiff with a concrete injury, caused by the defendant, that a court can actually fix. No advisory opinions, no hypotheticals, no generalized grievances, standingThe requirement that a plaintiff show a concrete, particularized injury, caused by the defendant, that a court can redress. No injury, no case.Full definition in the glossary doctrine turns many would-be constitutional showdowns away at the door.
Nearly every federal case begins in a district court: evidence, witnesses, motions, and judgment. This is the only stage that finds facts, everything above works from the record built here. Most cases end here too, by settlement, dismissal, or a verdict nobody appeals.
The losing side gets one appeal as of right, to the court of appeals for its circuit. No new evidence, no jury: the panel reviews the record for errors of law and publishes an opinion that binds every district court in the circuit.
A rare intermediate step: the full circuit can rehear a panel decision en bancAll active judges of an appeals court rehearing a case together, rather than the usual three-judge panel. Used for exceptionally important questions or to fix panel conflicts.Full definition in the glossary when the question is important enough or panels conflict.
There is no right to Supreme Court review. The loser files a petition for a certiorariThe Supreme Court's discretionary review. Losing parties petition for a 'writ of cert'; four justices must agree to hear the case.Full definition in the glossary, arguing not that the decision was wrong but that the question matters: a circuit split, a major federal question, a conflict with the Court's precedentA prior decision that guides or controls later cases. Courts must follow decisions of the courts above them; 'stare decisis' is the practice of standing by what was decided.Full definition in the glossary. Thousands are filed each term; the Court grants roughly one percent.
The justices sift petitions in private conference (most via a shared 'cert pool' of clerks). Four votes grant review, the rule of four. Denial decides nothing and sets no precedent; the lower ruling simply stands.
Source: SupremeCourt.gov, FAQ
Both sides file merits briefs on a set schedule, and outsiders pile in: amicus briefs from states, industries, scholars, and, most influentially, the amicus briefA 'friend of the court' filing from a non-party, a state, industry group, scholar, or the federal government, urging a particular outcome or offering expertise.Full definition in the glossary speaking for the United States. Major cases draw dozens of amicus filings, mapping the decision's stakes far beyond the parties.
Typically one hour per case: counsel begin scripted and are interrupted into conversation, the argument is the justices testing theories on each other as much as questioning the lawyers. Arguments run October through April, audio is public, and nothing is decided in the room.
Source: SupremeCourt.gov, Oral Arguments
The justices vote in a private conference days after argument; the senior justice in the majority assigns the opinion. Drafts circulate for months, votes can move, and the decision exists only when it is published: a majority opinion (the law), concurrences (agreeing differently), and dissents (disagreeing for the record, and sometimes for the future).
Five votes decide the case; the majority's reasoning binds every court in the country. Decisions in argued cases nearly all arrive by early July.
Source: SupremeCourt.gov, Opinions
Two paths skip parts of the ladder. State cases: a federal question decided by a state's highest court can go straight to the Supreme Court, state law itself stays with the states. jurisdictionA court's legal authority to hear a case: over the subject matter, the parties, and the territory.Full definition in the glossary: disputes between states (borders, river water) start and end at the Court, which appoints a special master to try them. A few statutes also route three-judge-panel cases up on direct appeal.
Stage-specific sources are cited on their stages above.
