Complex sentence: By mid 1999 Boris Yeltsin began losing his grip on power and Boris Berezovsky began to play an important role in the hunt for his successor in order to counter the political aspirations of the Prime Minister Yevgeny Primakov who was seen as more of a statist.
Split into simpler sentences: By mid 1999 Boris Yeltsin began losing his grip on power and Boris Berezovsky began to play an important role in the hunt for his successor. He did this in order to counter the political aspirations of the Prime Minister Yevgeny Primakov, who was seen as more of a statist.