Sara Carter on Hannity

The implications of these findings could be huge.

"This is now concrete evidence the FBI was told everything about Christopher Steele, who paid for the Russian dirt dossier lies, and they then used it anyway to spy," Fox News host Sean Hannity argued later in the program Thursday night.

His guest, investigative reporter Sara Carter, agreed.

"[W]hat John broke here is so significant and so important. It's going to unleash the avalanche, because now they're going to have to explain why they did this, and it is absolutely spying," she said.