American Jewish Committee (AJC) initiated in 2019 a survey of American Jews focused exclusively on antisemitism in the United States and, in 2020, began a parallel survey of the general U.S. adult population. Although AJC, the global advocacy organization for the Jewish people, had polled Jews in the U.S. for decades, the Tree of Life synagogue massacre in Pittsburgh in October 2018, the deadliest attack on Jews in U.S. history, prompted a new approach and the launch of what has become AJC’s State of Antisemitism in America report.