Mahmoud Khalil Sues Columbia: What He Alleges and What Comes Next
Mahmoud Khalil sued Columbia University and School of International and Public Affairs Dean Keren Yarhi-Milo, alleging institutional racism against Palestinian students and deliberate indifference to their harassment. Deliberate indifference is a legal term. It means officials knew about serious harassment and did not take reasonable steps.
The action was announced on September 14, 2026, at a press conference held at Columbia, according to contemporaneous reporting. Khalil brings the case in federal court with the Palestine Working Group (PWG), a student organisation advocating for Palestinian rights Reuters. The defendants named are the university, its trustees and Yarhi-Milo. Trustees are the board members with final oversight of the university.
Khalil is a Columbia graduate and former SIPA student who led a 2024 campus encampment protest. That protest began at Columbia and later spread across the United States. Columbia management has since indefinitely suspended the activities of the PWG, and Khalil himself faces suspension and loss of campus access.
Khalil and the PWG ask for the university suspensions to be lifted, for restoration of Khalil's campus access, for damages in amounts to be determined at trial, and for a bar on future discriminatory actions Al Jazeera.
The allegations
The complaint alleges deliberate indifference and severe, persistent and coordinated harassment directed at Khalil and other PWG-associated students because of pro-Palestine advocacy and perceived shared Arab and/or Muslim ancestry. It describes the PWG as formed in 2018 and states that hostility escalated to an extreme level after October 7, allegedly including doxxing and threats. Doxxing means posting someone's private details online to expose them to harm.
Khalil claims Columbia laid the groundwork for his targeting by the Trump administration through discrimination aimed at intimidating Palestinian students. The filing describes the university's conduct not as isolated administrative decisions but as a pattern intended to marginalize pro-Palestinian speech on campus. Those claims are contested. They will now be tested under federal anti-discrimination standards, which separate three questions: what students did, what officials knew, and whether the official response was clearly inadequate.
For readers tracking campus lawsuits, the naming of a sitting dean alongside the university and trustees stands out. It ties responsibility directly to SIPA's handling of student complaints and internal discipline. It also raises questions about how courts balance academic governance, faculty speech and administrative discretion when students allege viewpoint-based enforcement.
From protest to detention
In March 2025, Khalil was arrested by plainclothes Immigration and Customs Enforcement officers despite holding a green card as a U.S. legal resident. A green card lets a noncitizen live and work permanently in the United States. U.S. authorities alleged his activities were aligned with Hamas. Video of the arrest was recorded by his wife, a U.S. citizen who was eight months pregnant at the time.
He was then detained for 104 days. He was released in June 2025 and missed the birth of his child. In late August 2026, a federal judge ruled against his deportation, finding the Trump administration had violated the constitutional rights of international students punished for criticising Israel's war on Gaza Al Jazeera.
To understand the timing here, the deportation ruling removed the immediate immigration threat. The Columbia suit shifts the forum from immigration enforcement to institutional accountability. It asks whether university discipline and campus policing created exposure that federal authorities later acted upon.
What the suit seeks and what follows
The filing focuses on documents and timelines. It asks when Columbia officials knew of alleged doxxing or threats. It asks what disciplinary steps were taken against pro-Palestinian groups compared with other student groups. It asks how SIPA administered Khalil's enrollment, suspension and access privileges during and after his detention.
The filing asks for injunctive relief as well as damages. Injunctive relief means a court order to do or stop doing something. It states that lifting the indefinite suspension of the PWG would restore an organized pro-Palestinian presence at Columbia. It states that a bar on future discriminatory actions would limit how the university writes and enforces protest, encampment and student-group rules. It also seeks damages in amounts to be determined at trial.
The broader context here is triangular pressure on American universities. It is like three games played with different rulebooks. Federal authorities have used immigration powers against noncitizen protesters. Donors, lawmakers and litigants have pressed universities over antisemitism and campus safety. Pro-Palestinian students and faculty have pressed counterclaims of viewpoint discrimination and anti-Palestinian bias. Immigration courts ask about removability. Federal discrimination suits ask about equal protection and hostile environment. University senates ask about shared governance.
Looking at what this means for Columbia and its peers, three issues bear watching. First, discovery, the pre-trial exchange of emails and records, could surface internal communications about protest response, outside political pressure and coordination, if any, with law enforcement. Second, the court will have to define where legitimate regulation of time, place and manner ends and where alleged ancestry or viewpoint discrimination begins. Third, settlement dynamics will be complex. Universities often prefer to avoid precedent-setting rulings on speech and discrimination, while plaintiffs in high-profile civil-rights cases often seek public findings.
In my view, no outcome is determined at this point. The facts alleged by Khalil and the PWG remain allegations. Columbia's legal defenses and factual account will shape the next phase. The case is best read as a second-front litigation strategy after a successful defensive immigration fight, now moving to an offensive claim about the conditions that made the first fight possible.
