High Quality Content by WIKIPEDIA articles! Sergei M. Plekhanov (born May 7, 1946 in Moscow, Russia) is a former Soviet Union government adviser who served under the administration of Mikhail Gorbachev. He is also the former Deputy Director of the Institute for the Study of the USA and Canada in Russia, specializing in Russian politics and Russia-United States relations. He is an associate professor of Political Science at York University in Toronto, Canada, a position he has held since 1993.