Mayoral candidate Peter Liu , right, speaks to the crowd as Seneca Scott watches on during the Oakland mayoral forum at Laney College in Oakland , Calif., on Tuesday, August 30, 2022. Jungho Kim/Special to The Chronicle An Oakland synagogue plans to have an increased police and private security presence at a mayoral forum next week, after a candidate used antisemitic language in a series of emails about the event . Tyler Gregory , CEO of the Jewish Community Relations Council, said there will be more officers and private security at the Sept. 15 forum that his organization is holding...