Mahmoud Khalil's Lawsuit Revives the "Ku Klux Klan Act"... A Legal Confrontation with the Trump Administration and Pro-Israel Groups

Washington Message

Washington – Said Arikat – 7/15/2026

On Tuesday, July 14, Palestinian activist and Columbia University graduate Mahmoud Khalil opened a new chapter in his legal confrontation with the administration of US President Donald Trump, after filing a civil lawsuit in federal court against White House Deputy Chief of Staff Stephen Miller, the conservative Heritage Foundation, and an affiliate of Columbia University, along with a number of individuals and organizations, accusing them of conspiring to target him due to his pro-Palestinian rights activism, in a case that is poised to become an important judicial test of the limits of free speech in the United States.

The lawsuit is based on the "Ku Klux Klan Act" of 1871, one of the most prominent civil rights laws in American history, which was passed by Congress after the Civil War to confront acts of terrorism and violence perpetrated by the "Ku Klux Klan" organization against Black Americans and Reconstruction supporters. One of its most important provisions remains in force today, allowing for the prosecution of any individuals or entities proven to have conspired to deprive people of their constitutional rights or punish them for exercising freedoms guaranteed by the Constitution.

Khalil said, in a statement announcing the lawsuit, that he "will not stop fighting until everyone who deliberately contributed to depriving me of attending the birth of my son and taking 104 days of my life is held accountable," referring to his detention by US immigration authorities, adding that "this lawsuit is not only about what I personally experienced, but about a coordinated and ongoing conspiracy to punish, silence, and intimidate anyone who dares to advocate for the liberation of Palestine," confirming that other legal actions will follow soon.

Mahmoud Khalil, a Palestinian who held legal permanent residency in the United States, emerged as one of the most prominent leaders of the pro-Palestinian student movement at Columbia University during the widespread protests that swept American universities in objection to the Israeli war in the Gaza Strip. In March 2025, he was arrested by US immigration authorities after the Trump administration deemed his political activity to be contrary to US foreign policy interests and sought to deport him, a move that drew widespread criticism from civil rights organizations, which saw the administration as using immigration laws to punish peaceful political activity protected by the First Amendment of the US Constitution.

The lawsuit alleges that the targeting of Khalil was not a solitary administrative decision, but rather the result of coordination between government officials, think tanks, lobbying organizations, and pro-Israel activist groups, with the aim of silencing voices critical of the war on Gaza and sending a deterrent message to activists in American universities.

Among the entities included in the lawsuit are the organizations "Betar" and "Canary Mission," which operate as a front for Israeli propaganda, focusing their attention on collecting information about pro-Palestinian students and academics, publishing profiles about them, and pressuring universities and government authorities to take action against them. The two organizations have previously denied committing any legal violations, stating that their activity is limited to documenting what they consider to be antisemitism and extremism.

The lawsuit also accuses the "Heritage Foundation," one of the most influential conservative think tanks in Washington, of contributing to providing intellectual and political cover for the campaign that targeted pro-Palestinian activists, while Stephen Miller faces accusations of participating in drafting and implementing policies aimed at using state tools, including immigration laws, to punish opponents of US policy towards Israel.

Observers say that the case may transcend its personal boundaries to become a legal precedent regarding the relationship between the executive branch and private groups, and the extent of those groups' responsibility if it is proven that they coordinated with government officials to target individuals because of their political views. The case may also revive the use of a law dating back more than a century and a half in the context of a modern battle over freedom of expression, student activism, and the limits of influence exercised by lobbying groups within American state institutions.

Mahmoud Khalil's lawsuit comes at a time when the United States is witnessing a growing debate about whether the war in Gaza has redrawn the boundaries of free speech within American universities. University campuses have become the scene of an unprecedented political and legal confrontation between university administrations and the federal government on the one hand, and student movements that believe that criticizing Israeli policies is at the core of guaranteed constitutional rights. This case may make the American judiciary the arbiter in one of the most sensitive issues in decades.

The recourse to the "Ku Klux Klan Act" takes on special significance because it shifts the dispute from merely a disagreement over immigration decisions to an accusation of a widespread civil conspiracy to strip activists of their constitutional rights. If the plaintiffs can prove the existence of coordination between government officials and private organizations to target Khalil because of his political views, the case could open the door to similar lawsuits filed by other activists, thereby expanding the scope of legal accountability for campaigns to restrict freedom of expression.

This case once again highlights the controversial role played by the organizations "Betar" and "Canary Mission," which work to silence voices critical of Israel and its policies, especially the occupation and the devastating war on Gaza, which a growing number of experts and international organizations have described as potentially amounting to genocide. The two organizations have gone beyond claiming to combat antisemitism, adopting an approach based on defamation, blacklisting, and pursuing students and academics, thereby creating a climate of fear and self-censorship within American universities, undermining freedom of expression guaranteed by the US Constitution, and transforming the accusation of "antisemitism" into a political tool to silence anyone who dares to criticize the policies of the Israeli government, instead of confronting real antisemitism wherever it is found.