Russia's US envoy Kislyak steps down, his deputy to act as Charg d'Affaires ad interimTASSWASHINGTON, July 22. /TASS/. Ambassador Sergey Kislyak has stepped down as Russia's envoy to the United States and Minister-Counsellor and Deputy Chief of Mission Denis Gonchar will take over his duties, says a statement of the Russian embassy in ...and more »