Carter Page, a U.S. citizen, who was a foreign policy adviser to the Trump presidential campaign in early 2016, was surveilled under FISA Title I.
The FBI used the so-called Steele Dossier—which was written by former MI6 agent Christopher Steele and paid for by the Clinton campaign and the DNC—to portray Page as “an agent of a foreign power,” specifically Russia, to the Foreign Intelligence Surveillance Court (FISC).
FISA warrants on American citizens require formal approval from the FISC and specifically require that there be probable cause to believe the proposed target is a foreign power or an agent of a foreign power.
A FISA warrant is among the most invasive ways an American citizen can be spied on.
When asked by Congress in an Oct. 3, 2018, testimony about the FISA process, James Baker, the highest ranking lawyer at the FBI at the time of the Carter Page application, described a FISA warrant as…