Ashkenazi Jews Jews as an ethnic group. Moreover, though intermarriage among Jews of Ashkenazi descent has become increasingly common, many Haredi Jews, particularly members of Hasidic or Hareidi sects, continue to marry exclusively fellow Ashkenazi Jews. This trend keeps Ashkenazi genes prevalent and also helps researchers further study the genes of Ashkenazi Jews with relative ease. It is noteworthy that these Haredi Jews often have extremely large families. The "Halakhic" practices of (Orthodox) Ashkenazi Jews may differ from those of Sephardi Jews, particularly in matters of custom. Differences are noted in the "Shulkhan Arukh" itself, in the gloss of Moses Isserles. Well
Haredim and Zionism Sephardi or Mizrahi rabbis is far lower than among Ashkenazi rabbis, and these constitute a small minority of the Sephardi Haredi leadership. The Sephardi Haredi political party in the Knesset is Shas, which represents the vast majority of Sephardi Haredim, and is headed by Aryeh Deri. In 2010, Shas joined the World Zionist Organization, and officially became the first Zionist Haredi party. The party's long-time spiritual leader, Rabbi Ovadia Yosef, opposed saying Hallel in the Yom HaAtzmaut prayer service, but writes that, "One may say Hallel after the completion of the prayers, without the blessing..." While in the past, when