Supreme Court, National Security & Justice
Supreme Court Declines to Revive 9/11 Plea Agreement
The justices left in place a ruling that allowed the defense secretary to withdraw a deal for Khalid Sheikh Mohammed, keeping the military trial on its current path.
The court leaves the lower ruling intact
The Supreme Court declined Monday to revive a plea agreement for Khalid Sheikh Mohammed, the accused architect of the September 11 attacks. The justices did not issue a merits opinion explaining the denial. Their action leaves in place an appeals-court decision that upheld the defense secretary’s authority to withdraw the agreement. A denial of review does not necessarily endorse every part of the lower court’s reasoning; it means the case will not be heard now.
What the agreement would have done
Military prosecutors and the senior Pentagon official overseeing the Guantanamo military commissions had approved a deal under which Mohammed would plead guilty and receive life imprisonment without parole, avoiding the possibility of execution. Two co-defendants were also connected to the negotiations. Supporters viewed the agreements as a route to final judgments after years of delay. Opponents argued that the scale of the attacks required a capital trial and a decision by the highest defense leadership.
Austin intervened in 2024
Then-Defense Secretary Lloyd Austin withdrew the agreement, saying a death-penalty decision in a case of such significance should rest with the defense secretary. Defense lawyers argued that he acted after the agreement had become binding. A divided federal appeals panel concluded that Austin retained authority to revoke it. The Supreme Court’s refusal to intervene preserves that result but does not resolve every legal or evidentiary issue likely to arise before trial.
Families hold different views
Relatives of people killed on September 11 have not spoken with one voice about the plea. Some want a trial and the possibility of capital punishment; others see a negotiated guilty plea as the most realistic way to secure finality and an official record. Those positions reflect different judgments about justice, delay and uncertainty. Government statements should acknowledge the division rather than suggest that one procedural outcome represents every family’s preference.
The military commission’s long history
The case has been shaped by disputes over interrogation, admissible evidence, defense resources, classification and the structure of military commissions. Those issues help explain why proceedings have lasted far longer than an ordinary criminal case. A trial date has been set for 2028, according to AP, but complex pretrial litigation may still affect the schedule. The government must provide both accountability and a process capable of producing a durable judgment.
What follows
The parties return to the military commission under the existing ruling. Defense lawyers can continue litigating pretrial questions, while prosecutors prepare for the scheduled trial. Congress retains authority over the commission framework and can conduct oversight of cost and delay. The immediate headline is limited but consequential: the proposed plea is not restored, the death penalty remains legally available, and the case continues without a new Supreme Court rule governing similar agreements. Future negotiations would have to account for the authority recognized in the appeals ruling.
Reporting note: This article draws on public records and verified reporting; material claims are attributed in the text.