WASHINGTON — A US Senate panel launched a probe Wednesday of New York City Mayor Zohran Mamdani’s administration, citing “serious concerns” about the “rescission of executive orders related to antisemitism and boycotts of Israel.” Senate Health, Education, Labor and Pensions Committee Chairman Bill Cassidy (R-La.) wrote a letter to Mamdani asking whether the scrapping of the orders would hamper the enforcement of civil rights law — thus risking the revocation of $2.2 billion in federal funds. “