He pulled back the curtain on a sophisticated Kremlin hacking operation — identifying by name the 12 Russian military officers who he said sought to sway a U.S. election.
He exposed a Russian online influence campaign — bringing criminal charges against the 13 members of a Russian troll farm now accused of trying to manipulate U.S. voters and sow division through fake social media personae.
And he revealed how those closest to President Trump defrauded banks, cheated on their taxes and, time and time again, lied to deflect inquiries into their ties with Russia.