special coverage of the rebellion and, russia nbc's chief foreign correspondent richard engel has reported extensively on the, wagner group and he has the analysis of how russia got, here based on -- relationship. >> a senior u.s. official tells nbc news, the best way to understand what is happening now in russia, is a mafia power struggle, you got the progression is a mid level, and until recently loyal soldier who has risen through the ranks by doing special tasks for his boss. president putin. first, it was, food promotion owned a chain of restaurants including that new haven in st. petersburg, which putin and his early team used as a hanging out, earning him the nickname putin's chef. overtime, he learned to cater to putin's other needs, most americans know progression from the disinformation on their social media feeds, he founded a -- the internet research agency, and according to the justice