Former top FBI counterintelligence official pleads guilty to conspiring with Russian oligarch, faces 5 years in prison.

Charles McGonigal admitted to working with sanctioned Russian oligarch Oleg Deripaska and violating US sanctions.
McGonigal accepted payments from Deripaska to investigate his rival oligarch Vladimir Potanin.
He pleaded guilty to conspiring to violate sanctions and launder money, reversing his initial not guilty plea.
McGonigal faces up to 5 years in prison and still has separate bribery charges pending in Washington DC.
He expressed deep remorse for his actions of undermining US sanctions on Russian elites.