New York Gov. Kathy Hochul's strategically timed pardon of a convicted immigrant eliminated a major Supreme Court case on immigration detention, and the Trump administration says it will find another way to get the constitutional question answered.
The Supreme Court on Friday dismissed Genalo v. Black, an immigration detention case that had been scheduled for oral argument on Oct. 13, after both parties agreed the dispute was moot. U.S. Solicitor General D. John Sauer notified the court in a letter to clerk Scott Harris that the case could no longer proceed, and the ACLU, representing the detained immigrant, filed a joint stipulation to dismiss alongside the government.
The reason: Hochul granted a pardon in late August to Keisy Guerrero Mariano, the last remaining challenger in the case, wiping out the assault conviction that had made him deportable and subject to mandatory detention under federal immigration law. The pardon arrived just as legal briefs were due, Fox News reported, effectively pulling the rug out from under a case the government had fought to bring before the justices.
The case centered on a question the Supreme Court left open in its 2018 decision Jennings v. Rodriguez: whether the Fifth Amendment's due process clause eventually requires the government to give noncitizen detainees a bond hearing when their detention stretches on for months or years. In Jennings, the court held that the federal detention statute, Section 1226(c) of the Immigration and Nationality Act, does not itself require periodic bond hearings. But the justices stopped short of deciding whether the Constitution independently demands them.
The U.S. Court of Appeals for the 2nd Circuit answered that open question by ruling that the government must grant noncitizens a bond hearing once detention becomes "unreasonably long," citing due process protections. Sauer's cert petition urged the Supreme Court to reverse that decision, arguing that Section 1226(c) "expressly prohibits" the release of detained noncitizens "except on 'narrow, witness-protection' grounds."
The Supreme Court has faced no shortage of consequential cases in recent terms, but this one carried particular weight for immigration enforcement. If the 2nd Circuit's reasoning stands unchallenged, it could require bond hearings for detained criminal immigrants across the circuit, and serve as precedent elsewhere.
The case had already narrowed before Hochul acted. Carol Williams Black, the other original challenger, left the United States and filed a declaration stating he had no intention of returning. Both parties agreed his claim was moot. When the Supreme Court granted the petition on June 15, it clarified the case would focus solely on Guerrero Mariano and asked lawyers on both sides to brief whether his claim, too, was moot.
Hochul's pardon did not just help one man avoid deportation. It denied the federal government a vehicle to challenge a circuit court ruling that could reshape immigration detention nationwide. Iowa Solicitor General Eric Wessan did not hold back about the timing.
"Pretty wild to fully pardon an aggravated felon to (1) stop the felon from getting deported and (2) stop the Supreme Court from ruling on an issue."
Guerrero Mariano, a Dominican immigrant, had been detained by immigration officials for 21 months after his assault conviction before being released from custody in 2022. ACLU National Legal Director Cecillia Wang wrote in Guerrero Mariano's merits-stage brief that, as a result of the pardon, he is "no longer deportable" and no longer "subject to mandatory detention under" Section 1226(c).
Sauer acknowledged in his Friday letter that the government "agrees with G.M. that his habeas case is now moot." But the solicitor general made clear the Justice Department does not consider the fight over. SCOTUSblog reported that Sauer indicated the department aims to bring the issue back to the court soon through a new petition for review.
Sauer told the court the Trump administration will seek an "alternative vehicle" to challenge the 2nd Circuit's ruling during the 2026, 27 term. That signals the administration views the underlying constitutional question as urgent enough to keep pressing, even after losing its best case to a governor's pardon.
Finding a suitable replacement will take time. The government needs a detainee whose case presents the same legal question, whose claims are not moot, and whose circumstances can survive the cert process. Meanwhile, the 2nd Circuit's ruling, requiring bond hearings for noncitizens held for extended periods, remains the law in that circuit.
The Trump DOJ has repeatedly turned to the Supreme Court to challenge lower-court rulings that constrain executive authority. This case fit that pattern: the administration argued that Congress wrote the detention statute to keep criminal noncitizens locked up during removal proceedings, and that federal judges had no business inventing a bond-hearing requirement the statute does not contain.
The dismissal leaves the October argument calendar notably thin. Only one case remains scheduled for Oct. 13, and only six total arguments are set for the October sitting. The court's docket and composition remain a subject of intense political interest on both sides.
For the administration, the practical problem is straightforward. Section 1226(c) requires detention of noncitizens, including green card holders, who have committed certain crimes and are awaiting removal proceedings. If circuit courts can order bond hearings that the statute does not authorize, the government loses a tool Congress designed to keep criminal immigrants off the streets while their cases proceed.
The administration has shown no hesitation in bringing policy disputes back to the high court after lower-court setbacks, and Sauer's letter suggests this issue will be no exception.
A governor used her pardon power to shield one convicted immigrant from deportation. In doing so, she also shielded a circuit court ruling from Supreme Court review. That is not justice, it is obstruction dressed up as mercy, and taxpayers living with the consequences of weakened enforcement are the ones left holding the bill.