Milbank, Tweed, Hadley & McCloy’s decision to reallocate a $1 million gift originally meant to fund student events and journals at Harvard Law School has sparked an unusual public clash between the firm and a group of prominent law professors.

After a student group called Justice for Palestine used $500 of Milbank’s funds to buy pizza for a panel discussion about free speech for pro-Palestinian advocates, the firm decided that its gift to the school should no longer be used to sponsor student events. The student group had named Milbank as the sponsor of the event on a Facebook page.