One reason for the jump this year appeared to be the 161 bomb threats called in to JCCs and other Jewish institutions, the Anti-Defamation League found in its annual audit.
Signers include the umbrella bodies for federations and Jewish community relations councils, as well as Reform and Reconstructionist groups and major Jewish defense groups.
Senators called on the Trump administration to improve hate crimes reporting and to set up an interagency task force while continuing preparedness programs.