Cambridge Analytica harvested personal information from a huge swath of the electorate to develop techniques that were later used in the Trump campaign.
Lack of candor is a fireable offense at the F.B.I., but Mr. McCabe’s last-minute dismissal from the agency was carried out against a highly politicized backdrop.
Corporations and foreign leaders are pressing to meet with White House officials and hiring lawyers and lobbyists to push for exemptions that could be worth billions of dollars in trade.
The president, who is famously fickle, appears to have soured on additional members of his senior leadership team, and some people around him are convinced he could make more moves soon.
Over the last year, Russian hackers have gone from infiltrating business networks of energy, water and nuclear plants to worming their way into control rooms.
The actions came at the same time the Trump administration joined a collective statement with Britain, France and Germany denouncing Russia for its apparent role in a nerve-gas attack.