The FBI obtained a secret court order summer 2016 to monitor the communications of an adviser to presidential candidate Donald Trump, part of an investigation into possible links between Russia and the campaign.
The FBI and the Justice Department obtained the warrant targeting Carter Page’s communications after convincing a Foreign Intelligence Surveillance Court judge that there was probable cause to believe Page was acting as an agent of a foreign power, in this case Russia.
The counterintelligence investigation into Russian efforts to influence U.S. elections began in July 2016.