Former CIA Director John Brennan and other former top national security officials could lose their security clearance if the White House follows through on a threat made Monday. Claire Harbage/NPR hide caption
James Clapper
Former National Intelligence Director James Clapper testifies on Capitol Hill in Washington, before the Senate Judiciary subcommittee on Crime and Terrorism hearing: "Russian Interference in the 2016 United States Election," in May. Pablo Martinez Monsivais/AP hide caption
FBI Director James Comey (left) and National Intelligence Director James Clapper testify during a Senate Intelligence Committee hearing Tuesday. Cliff Owen/AP hide caption
Russian President Vladimir Putin speaks during his annual televised New Year's message in the Kremlin in Moscow. Mikhail Klimentyev/AP hide caption
Director of National Intelligence James Clapper (center) talks with National Security Agency and Cyber Command chief Adm. Michael Rogers prior to testifying before the Senate Armed Services Committee. Evan Vucci/AP hide caption
Director of National Intelligence James Clapper announced his retirement Thursday during a hearing of the House Intelligence Committee. Alex Wong/Getty Images hide caption
Director of National Intelligence James Clapper appears on Capitol Hill in February. Andrew Harnik/AP hide caption
Director of National Intelligence James Clapper testifies Tuesday before a Senate Armed Services Committee hearing on worldwide threats. Evan Vucci/AP hide caption
Director of National Intelligence James Clapper testifies during a hearing before Senate Select Intelligence Committee on Wednesday. Alex Wong/Getty Images hide caption
National Intelligence Director James Clapper waits for a hearing of the Senate Judiciary on Wednesday. Brendan Smialowski/AFP/Getty Images hide caption
Director of National Intelligence James Clapper has apologized for a "clearly erroneous" response to a question about surveillance on Americans. The question was asked before the Senate Intelligence Committee in March. Susan Walsh/AP hide caption