Former Trump campaign aide Carter Page revealed Sunday how an FBI informant acted toward him during the summer of 2016 in the days leading up to the government securing a FISA warrant to spy on him.

Speaking with Fox News host Maria Bartiromo on "Sunday Morning Futures," Page said FBI informant Stefan Halper "intensified" conversations in the weeks prior to the government obtaining the FISA warrant.

"I had a longstanding relationship with Professor Halper," Page said. "I always believe in 'innocent until proven guilty,' but my conversations with him intensified right in the month before my illegitimate FISA warrant in Sept. 2016, when all these defamatory articles are being placed by the [Democratic National Committee]."

"Professor Halper was being very positive, you know, sort of like a Harriet Tubman figure. He understands sort of the the injustices, or he presented himself as understanding that and I sort of trusted him," Page explained.

Despite having a longstanding relationship with the CIA, the FBI alleged Page was "an agent of a foreign power" in its FISA warrant application, which largely relied on the intelligence dossier compiled by British spy Christopher Steele. Although the document was built upon uncorroborated intelligence — most of which has since been discredited — the FBI continued to cite the document in subsequent warrant renewal requests.

Page has never been accused of criminal wrongdoing.

Page's comments come after a court filing from the Justice Department revealed more details about Halper's actions in Jan. 2016, the time in which he began collecting intelligence on former national security adviser Michael Flynn.