Status as of September 12, 2026. The Supreme Court dismissed Genalo v. Black, No. 25-886, on September 11, 2026, after both sides filed a joint stipulation that the case had become moot. The October argument is cancelled. No decision was issued on the merits, so nothing changes for anyone currently detained. The Second Circuit ruling under review stays in force in New York, Connecticut and Vermont, and the Solicitor General has said the government intends to bring the question back with a new petition.
The case would have answered a question the Supreme Court has left open since 2018: whether mandatory immigration detention can go on so long that the Constitution requires a bond hearing, and if so, who bears the burden at that hearing. It ended without an answer because a governor's pardon removed the basis for one man's detention.
What the Court was going to decide
Section 1226(c) of the Immigration and Nationality Act requires the government to detain certain noncitizens — lawful permanent residents included — while removal proceedings run their course, if they have convictions in specified categories. The statute sets no time limit and provides no bond hearing.
The questions presented were whether detention under that provision can become so unreasonably prolonged that due process requires a bond hearing; whether, if it does, the government must justify continued detention by clear and convincing evidence; and, added by the Court when it granted review on June 15, 2026, whether the remaining respondent's case was already moot.
Why this question was open in the first place
In Jennings v. Rodriguez, 583 U.S. 281 (2018), the Supreme Court held that Section 1226(c) itself does not require periodic bond hearings — the statute cannot be read to contain them. But the Court expressly reserved the constitutional question of whether due process requires such hearings at some point in a long detention, and what form they would take.
Lower courts have been filling that gap unevenly ever since. That divergence is why the government sought review, and it is what remains in place now.
The ruling that stands
In May 2024, the U.S. Court of Appeals for the Second Circuit held that once mandatory detention under Section 1226(c) becomes unreasonably prolonged, due process requires a bond hearing at which the government must show by clear and convincing evidence that the person is a flight risk or a danger. That decision, reported at 103 F.4th 133, was the ruling the government asked the Supreme Court to overturn.
With the dismissal, it remains binding within the Second Circuit — New York, Connecticut and Vermont. Outside those states, the question is governed by whatever the local court of appeals has said, and the Supreme Court has still not resolved it.
How the case fell apart
The petition originally involved two men held under Section 1226(c), detained for seven and 21 months respectively. When the Court granted review on June 15, 2026, the case had already narrowed to the second man, identified in the litigation as Keisy G.M., a lawful permanent resident who had been held for 21 months after an assault conviction.
He had been released from custody in 2022, which raised a mootness question the Court asked the parties to brief. In late August 2026 the question became decisive: New York Governor Kathy Hochul pardoned the assault conviction that was the sole basis for his mandatory detention and for his removability. With that gone, his counsel argued there was no live controversy left.
The Solicitor General agreed. On September 11 the parties filed a joint stipulation to dismiss, and the Court dismissed the case the same day.
What this changes, and what it does not
Nothing about anyone's current detention changes as a result of the dismissal. There is no new Supreme Court precedent, the Second Circuit rule is untouched, and the rules in every other circuit are exactly what they were last week.
What the dismissal does change is timing. The government has said it intends to present the question again through a new petition, which means the issue is likely to return to the Supreme Court — but on a different record, with a different detainee, and on its own schedule.
Frequently asked questions
Did the Supreme Court rule on prolonged immigration detention?
No. The case was dismissed as moot on September 11, 2026, before argument. There is no ruling on the merits and no new nationwide precedent on when prolonged detention under Section 1226(c) requires a bond hearing.
What rule applies now in New York, Connecticut and Vermont?
The Second Circuit's 2024 decision stands. Once mandatory detention under Section 1226(c) becomes unreasonably prolonged, due process requires a bond hearing at which the government must prove by clear and convincing evidence that the person is a flight risk or a danger.
Why was the case dismissed?
A pardon issued by the Governor of New York in late August 2026 eliminated the conviction that was the basis for the respondent's mandatory detention and removability. Both sides then agreed there was no live controversy and filed a joint stipulation to dismiss.
Official sources
| Resource | What it covers |
|---|---|
| Questions presented, Genalo v. Black, No. 25-886 | Exactly what the Court agreed to decide, including the added mootness question |
| Jennings v. Rodriguez, 583 U.S. 281 (2018) | The decision that left the constitutional question open |
| Second Circuit decision below, 103 F.4th 133 (2d Cir. 2024) | The rule that remains in force in New York, Connecticut and Vermont |
| 8 U.S.C. § 1226(c) | The mandatory detention provision at the center of the case |
This material is informational, current as of September 12, 2026, and is not legal advice. Whether a particular detention is prolonged enough to require a bond hearing depends on the circuit, the length and circumstances of custody, and the posture of the removal case. Anyone detained or with a family member in custody should consult a licensed immigration attorney.