Kaminski was born in 1950 in eastern Russia, but his family was of Ukrainian-Polish descent[citation needed].

Kaminski's first political office was as a member of the council of the city of Rîbnița from 1990 until 2000[citation needed], when he was elected to parliament.

Kaminski was subsequently elected as vice-speaker, with Yevgeny Shevchuk, also of the Obnovlenie party, becoming speaker[citation needed].

[1] President of South Ossetia Eduard Kokoity awarded Kaminski the "Order of Friendship" on 12 March 2010, "for a great personal contribution to the development of friendship between the peoples of South Ossetia and Transnistria, merits in strengthening inter-parliamentary cooperation and for his 60-year birthday".

Yevgeny Shevchuk, the former chairman of the Supreme Soviet, received the most support with 38.53%, while sitting president, Igor Smirnov, came in third with 24.82%.