The U.S. Supreme Court has the power to revisit its own decisions, but it almost never does. The last time the justices granted a rehearing after issuing a decision was in 1965, and the Court has reversed itself on rehearing only once. That stark record shapes every fresh plea asking the justices to take a second look.
These figures matter as parties in high-stakes cases continue to file rehearing petitions. The requests arrive in Washington within tight deadlines and face long odds. The Court’s rare use of this tool signals deep caution about reopening cases and a strong interest in finality.
What Rehearing Means
A rehearing is a formal request for the Supreme Court to reconsider a decided case. It is not a new appeal or a do-over. It is a narrow invitation to correct a major error, account for new developments, or address consequences the Court may have missed.
Under Court rules, petitions are typically due within weeks of judgment, and most are reviewed without oral argument. Rehearing requires votes from the justices, and that threshold—paired with institutional restraint—makes grants extremely rare.
A Tool Seldom Used
The last time the justices granted a rehearing request after a case decision was in 1965. The court has only once reversed itself after rehearing a case.
That two-line history is the heart of the story. It shows how tightly the Court guards finality. While the justices often grant reargument before issuing a final decision—especially when a case raises broad constitutional questions—post-decision rehearing is another matter.
Legal scholars say the justices worry that frequent reversals would invite uncertainty nationwide. Lower courts, state officials, and businesses rely on clear rules. When the Court writes those rules, it tends to stick with them unless there is a compelling reason to change course.
Why Parties Still Try
Petitioners still file because, once in a generation, circumstances align. A major new decision may undercut a recent ruling. A factual development can make a precedent unworkable. Or an internal error might appear only after the opinion circulates outside the marble halls.
- Intervening decisions: A fresh ruling can collide with a recent one.
- New facts or events: Post-decision changes can alter the legal stakes.
- Clear mistakes: Parties may argue the Court overlooked key points.
Even then, the bar is high. Most petitions are denied in short orders without noted dissents. Silence is the norm.
The Stakes for Courts, States, and Industry
Rehearing decisions ripple far past the litigants. State agencies may pause enforcement while they watch for final word. Companies may delay costly investments if a rule could flip. For trial judges, a pending rehearing bid can freeze related cases.
Because of those pressures, Supreme Court practice is built to settle law promptly. Final judgments give everyone down the chain a stable rule to follow. The Court’s near-zero rate of rehearing grants serves that goal.
What Could Move the Needle
Could the justices grant more rehearing petitions in the future? It would likely take one of three triggers: a direct clash between fresh Supreme Court rulings, a major error that undermines the decision’s reasoning, or developments that make the judgment unworkable.
Short of those conditions, the historical record suggests denials will continue to be routine. The justices may add short clarifications in future cases rather than reopen a just-decided one.
How to Read the Odds
For lawyers and clients, the math is blunt. A petition for rehearing signals that the fight is not quite over, but it is close. Given the history, a grant is extraordinary and a reversal rarer still.
That does not make the petitions pointless. They preserve issues, alert the Court to fast-moving changes, and, once in a rare while, prompt a correction.
The takeaway is clear: rehearing at the Supreme Court exists, but it is almost never used. Anyone watching a fresh petition should expect a fast denial unless something seismic has shifted. If a grant appears on the docket, that alone is news. If a reversal follows, it is history.
