In the end of days, the Erav Rav will be the leaders of the Israeli gov't.
This is a teaching from The Vilna Gaon in Sefer Kol HaTor:
Armilus(OLMERT), the angel of the mixed multitude (ERAVRAV), is the one who attempts to couple Esau and Ismael, (bringing Abbas to the Europeans & Americans, and presenting him as a man of peace) and this could destroy Israel and the entire world, Heaven forbid. The main desire of the mixed multitude (ERAV RAV) is to couple Esau and Ismael and to separate the two meshichim. Our main task to counter, even battle such deeds; we must destroy the might of the mixed multitude, the layer of the wicked Armilus, and drive them out of Israel. The mixed multitude is our greatest enemy, for it separates the two meshichim. The outer shell of the mixed multitude operates only by delusions and indirectly. Therefore the war against the mixed multitude is the most difficult and bitter, and we must wage war against it and overpower it with all our might. Anyone who does not participate in the war against the mixed multitude, is actually becoming a partner of the ÒlayerÓ of the mixed multitude. Whoever he is, he would have been better off had he not been born. The primary power of the mixed multitude is at the gates of Jerusalem, particularly at the entrance to the city, which is on the western middle line. (How the Vilna Gaon knew there would be an east & west Jerusalem shows his gift of Prophecy)