From what I've heard, the new ADL national director is a former Obama administration official. So for him to be "in the bag for Zero" is hardly earth shaking. Here he is starting his new position at the ADL according to form.
The ADL's historical function is to speak out against anti-Semites and anti-Semitism, not against philosemites concerned about the survival of Jews and Israel. Greenblat here is doing just the opposite of what ADL is supposed to do. He should be either praising Huckabee for his remarks, or at worst, be keeping quiet.