 Chernev was formerly a member of the Attack and was widely regarded as Volen Siderov's right-hand man.During his time with Ataka, Chernev was among the members who played a role in steering the party away from radical nationalists and activists with admiration for Neo-Nazi ideas.Chernev parted ways with the party in 2006 following the development of a conflict of interest with the party leader in the aftermath of his and Siderov's controversial involvement in a traffic dispute with another driver.