However , he was politically ambitious and prosecuting Russia 's most prominent and successful tycoon was perceived as a boost to his political career and intended candidacy for the Duma .
He was not seen as particularly close to Putin , who had once tried to remove him .
Putin was politically ambitious and prosecuting Russia 's most prominent and successful tycoon was perceived as a boost to Putin 's political career and intended candidacy for the Duma .
He was not seen as particularly close to Putin , who had once tried to remove him .