New York CNN — The Anti-Defamation League sent an open letter to more than 200 colleges and universities Wednesday, urging administrators to investigate campus chapters of Students for Justice in Palestine for allegedly supporting Hamas. The letter, written in conjunction Brandeis Center, a Jewish human rights legal advocacy group, said that many SJP chapters have endorsed Hamas’ attack on Israel that left more than 1,400 dead. The United States has designated Hamas as a foreign terrorist organization. The ADL said any financial support the chapters may have made to bolster Hamas’ cause could violate federal and state laws that prevent...