New York’s Museum of Jewish Heritage told organizers of an upcoming conference that a scheduled speaker, Florida Gov. Ron DeSantis, was unwelcome at the institution, Eliot Abrams and Eric Cohen wrote in a Wall Street Journal op-ed that was published yesterday. Abrams and Cohen are the co-chairs of the Jewish Leadership Conference, a gathering set for June 12 and organized by the conservative Tikvah Fund. The conference was due to take place at the Museum of Jewish Heritage in downtown Manhattan, they write — until DeSantis accepted an invitation to speak. Then the museum informed the conference that DeSantis was...