Article III, Section 2 of the Constitution limits federal courts to resolving actual "cases" and "controversies." Courts can't issue advisory opinions, answer hypothetical questions, or rule on disputes where no one has been harmed. This restriction keeps the judiciary focused on resolving real conflicts rather than making policy.
To bring a case, a party must demonstrate "standing" — three elements the Supreme Court has identified as mandatory. The plaintiff must show an actual or imminent injury, trace that injury to the defendant's conduct, and demonstrate that a court ruling could remedy the harm. Without all three, the case gets thrown out before it reaches the merits.
This doctrine prevents courts from overstepping into legislative or executive territory. It also means some government actions go unchallenged — not because they're constitutional, but because no one can prove the specific, personal harm courts require.
The cases-and-controversies requirement determines who can challenge government action in court and who can't. If you haven't suffered a concrete, personal injury, you can't sue — no matter how unconstitutional a policy might seem. This gatekeeping function shapes which disputes get judicial review and which ones are left to the political process.
People often assume anyone can challenge an unconstitutional law in court. They can't. Standing requires proof of personal harm — general disagreement with a policy or concern about government overreach isn't enough. Courts regularly dismiss cases not because the claims lack merit, but because the plaintiff lacks standing.
The cases-and-controversies requirement determines who can challenge government action in court and who can't. If you haven't suffered a concrete, personal injury, you can't sue — no matter how unconstitutional a policy might seem. This gatekeeping function shapes which disputes get judicial review and which ones are left to the political process.
People often assume anyone can challenge an unconstitutional law in court. They can't. Standing requires proof of personal harm — general disagreement with a policy or concern about government overreach isn't enough. Courts regularly dismiss cases not because the claims lack merit, but because the plaintiff lacks standing.