Mueller gives judge Rosenstein memo justifying Manafort probe

Robert Mueller walks down a flight of stairs in the Capitol
Special counsel Robert Mueller (L) arrives at the U.S. Capitol for a closed meeting. Photo: Alex Wong/Getty Images

Special Counsel Robert Mueller has given a "skeptical" judge a three-page document — written by Deputy Attorney General Rod Rosenstein, who is overseeing the Russia investigation — justifying his team's probe in to Trump's former campaign chairman Paul Manafort, reports Bloomberg.

Why it matters: Prosecutors reportedly filed the full memo "under seal and directly to the judge through the classified security officer." As Bloomberg points out, that process suggests the document contains national security information.