All commentators agree that this week’s Likud primaries marked a watershed event. Anti-liberal forces have gained considerable power, with Danny Danon, Zeev Elkin, Tzipi Hotovely and Yariv Levin climbing up the ranks, and Moshe Feiglin, an extreme right-winger who has been Prime Minister Benjamin Netanyahu’s nightmare for years, outflanks them. The Likud ministers who fended off the worst excesses of past...