Sen. Bill Cassidy (R-LA), the chair of the Senate Health, Education, Labor and Pensions Committee, announced on Thursday that he’s launching an investigation into New York City Mayor Zohran Mamdani, prompted by the mayor’s rescission last month of executive orders from the prior administration related to Israel and antisemitism.

“Has antisemitism decreased in New York City? I haven’t seen any evidence of that. Academic institutions have, of recent, been places where Jewish students have felt quite threatened,” Cassidy told Jewish Insider, referring to Mamdani’s repeal of an executive order implementing the International Holocaust Remembrance Alliance’s working definition of antisemitism that came as part of a broader revocation of executive orders issued by former Mayor Eric Adams following his indictment in September 2024 on federal bribery and wire fraud charges. 

“I think Mayor Adams did a good job in signaling that the city had an interest in making sure that students, no matter how they identified themselves, were safe from harassment,” Cassidy continued. “The rescinding of the antisemitism and Israel orders doesn’t seem to be conducive with a lowering instance of antisemitism, so why did Mamdani rescind them? That’s the point.”

Among his first actions in office, Mamdani also repealed an anti-Boycott, Divestment and Sanctions order.

Cassidy said in a letter to Mamdani that “strong leadership against antisemitism and discrimination is essential to the safety and security of Jewish New Yorkers.”

“It is my job to ensure every student feels safe, and at a time when Jewish students feel scared, I am concerned your actions will only exacerbate their fears,” Cassidy continued. “Decisions by your administration that weaken established safeguards for Jewish students in New York and are out of alignment with federal executive orders warrant careful scrutiny. Jewish students deserve clear assurance that their safety and civil rights will not be compromised by your administration’s actions. 

He warned that repealing the IHRA order puts New York City out of alignment with federal antisemitism executive orders “and may hinder the U.S. Department of Education’s Office for Civil Rights’ enforcement of Title VI.” He warned that the $2.2 billion in federal funding allocated to New York City public schools could be at risk depending on “compliance with federal civil rights laws and applicable executive orders designed to protect students.”

Cassidy asked Mamdani to explain his administration’s plans to adopt an alternative antisemitism definition, its plans to combat antisemitism on campuses, whether it has consulted with the federal government about the “potential funding implications” of withdrawing the IHRA order, whether it has issued guidance to New York City schools about antisemitism and whether he believes BDS is antisemitic.

“Whatever somebody’s ideological background, if they’re in a position of responsibility, they must protect their citizens,” Cassidy said in a post on X. “Clearly, antisemitism has been on the rise. We must respond to real dangers directed at Jewish students.”