<prompt> Pedzisa mutsara unotevera: Kovalyov ave achitsoropodza zvakasimba tsika dzoudzvinyiriri muhurumende dzaBoris Yeltsin naVladimir Putin. Muna 1996, akasiya basa semukuru wekomisheni yemutungamiri wenyika Yeltsin yekodzero dzevanhu, mushure mekuburitsa tsamba yakavhurika kuna Yeltsin, uko Kovalyov akapomera mutungamiri kuti arege nheyo dzedemokrasi. Muna 2002, akaronga komisheni yevanhu kuti iongorore  <response>: 1999 Moscow dzimba dzokubhomba Kovalyov Commission, iyo yakanyatsoparadzwa pashure pokunge imwe yenhengo dzayo, Sergei Yushenkov, yapondwa, imwe nhengo, Yuri Shchekochikhin, inonzi yakasvibiswa ne thallium, uye gweta rayo rezvemitemo uye muongorori, Mikhail Trepashkin, akasungwa. 