Khrushchev

The Soviet leader Nikita Khrushchev had a strong antisemitic streak, and disliked the number of Jews in high positions in the U.S.S.R. "Too many Ambramoviches!" he would complain.
Chelsea supporters should take note!

It has been suggested that one reason why Stalin sponsored the rise of Khrushchev in the later 1930s was that Khrushchev was a genuine working-class ethnic Russian, of whom there were none too many in the Soviet leadership; many of whom were not ethnic Russians (Beria, Mikoyan, Kaganovich, Malenkov, and of course Stalin himself), and those who were ethnic Russians (such as Molotov and Zhdanov) were not working-class in origin. Only after the death of Stalin was the Soviet Union run by ethnic Russians - and went into continuous economic and ideological decline.

(Source: Simon Sebag Montefiore: "Stalin: the Court of the Red Tsar"