Sinai Temple has been notably impacted by the wave of Persian Jews who immigrated to the United States after the 1979 Islamic Revolution in Iran. Prior to this event, the congregation had been overwhelmingly composed of Ashkenazi Jews of Eastern European heritage. As many Persian Jews emigrated to Los Angeles, a substantial number joined Sinai Temple; over time the Persian Jews became more fully integrated into the congregation, which is now made up of about even proportions of Ashkenazim and Persians. Jimmy Delshad became the first Persian Jew to become president of Sinai Temple in 1990; in 2007 he was elected as mayor of Beverly Hills.