President Donald Trump announced Monday that retired Lt. Gen. H. R. McMaster will serve as his national security adviser. McMaster replaces Michael Flynn, who resigned amid allegations that he misled the White House about his communications with Russia's ambassador to the United States. Retired Army Lt. Gen. Keith Kellogg will remain as the National Security Council's chief of staff.
The attempt to get inside the U.S. president's mind is aimed at helping Vladimir Putin plan for their first meeting. Among the dossier's preliminary conclusions is that Trump is a risk-taker who can be naïve, a senior Kremlin adviser told NBC News.