No. 17-9560October Term 2018Decided Jun 21, 2019
Rehaif v. United States
To win a conviction under this law, the government must prove the defendant knew both the facts of possession and the facts that made him barred from having a gun.
Case status
- Current stage
- Decided
- Latest event
- Decision released Jun 21, 2019
- What it's about
This case asked whether, to convict someone under the federal law banning certain people from possessing firearms, the government must prove not only that the person knowingly possessed a gun but also that he knew he belonged to a prohibited category, such as being unlawfully in the United States. The Supreme Court held that the government must prove both.
Question presented
Whether the "knowingly" provision of § 924(a)(2) applies to both the possession and status elements of a § 922(g) crime, as has been urged by then-Judge, now Justice Gorsuch, or whether it applies only to the possession element, as has been held by the courts.
- Case path
United States Court of Appeals for the Eleventh Circuit / Decision released Jun 21, 2019
- Area
Gun Rights
Briefing
What it's about
The case asked what the word "knowingly" means in a federal gun-possession law. The Supreme Court said the government must prove both that a person knew he possessed a gun and that he knew he was in a barred category, such as being unlawfully in the United States.
Vote
The Court decided that the government must prove knowledge of both possession and prohibited status, but the prompt does not provide the vote count or opinion lineup.
Impact
This makes these prosecutions harder for the government in some cases. For example, a prosecutor must now show the defendant knew his immigration or other barred status, not just that he had the gun.
What's next
The Supreme Court has finished its work in this case. The practical next step is for lower courts and prosecutors to apply this reading of the law in future cases and any remaining proceedings.
What was the main fight in Rehaif v. United States?
The dispute was over what the word "knowingly" covers in the federal gun law. The Court said it covers both gun possession and barred status.
How does this decision affect real criminal cases?
Prosecutors must prove more than simple possession. They must also show the defendant knew the status that legally barred gun possession.
What happens after the Supreme Court's decision in this case?
The Court's review is over. Lower courts must use this interpretation when handling similar federal gun-possession cases.
Decision
What the Court decided
To win a conviction under this law, the government must prove the defendant knew both the facts of possession and the facts that made him barred from having a gun.
Impact
This makes these prosecutions harder for the government in some cases. For example, a prosecutor must now show the defendant knew his immigration or other barred status, not just that he had the gun.
Not official Court text.
Opinion documents
Related cases




Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Jun 1, 2026
- Method
- Methodology
Primary materials10
Supreme Court docket 17-9560
docket | Jun 1, 2026
Primary case document
Supreme Court document | Jun 1, 2026
CourtListener docket record
docket | Jun 1, 2026
Questions Presented
brief | May 24, 2026
opinion
opinion | Jun 21, 2019
Petition
brief | Jun 21, 2018
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026