'Things are scary for them': Dem who busted Nunes says GOPer has never stopped 'coordinating' with White House
Brianna Keilar speaks to Mike Quigley (CNN/screen grab)

Rep. Mike Quigley (D-IL) said on Wednesday that he believes House Intelligence Committee Chairman Devin Nunes (R-CA) has been conspiring with the White House for months to undermine the Russia investigation.

According to reports, Quigley confronted Nunes at a closed-door meeting this week about writing a memo that allegedly aims to discredit an investigation into Russia's interference in the 2016 U.S. election. Nunes reportedly refused to deny that he had worked with the White House to write the memo.

During an interview with CNN's Brianna Keilar, Quigley recalled that Nunes had also been caught colluding with the White House to undermine the Russia investigation last year.

"So, hey, why not ask him the same questions about this memo?" Quigley explained. "I asked the chairman did he work with [the White House] -- coordinate, discuss -- and he said, 'Not to my knowledge.' And I asked him, did your staff? And then he became quite agitated and said, 'I'm not answering that.'"

"I fully believe that Chairman Nunes has not changed his tactics," he continued. "He began this investigation as a subsidiary of the White House, as someone who was coordinating with them rather than being an independent investigator."

The congressman added: "I don't believe there has ever been a time when Chairman Nunes didn't believe his responsibility in this investigation didn't rest with whatever the White House wanted him to do."

Quigley said that he has come to believe Nunes was "coordinating with the White House all along."

"The memo is part of a pattern," he noted. "Things have gotten very scary for them."

Former White House ethic chief Norm Eisen warned this week that Nunes has opened himself up to obstruction of justice charges by coordinating with the White House to undermine the Russia investigation.

Watch the video below from CNN.