The International Holocaust Remembrance Alliance, of which the United States is a member, adopted a non-legally binding “working definition of antisemitism” at its plenary on May 26, 2016, in Bucharest, Romania.

Since then IHRA’s 42 member and observer states and many nonmember countries throughout the world, as well as non-governmental international organizations, have adopted the definition; and have used it in legislating hate crimes and in formulating public policy dealing with antisemitism.

As a member of IHRA, the U.S. State Department and all other government agencies now use this worki...