House Intelligence Committee Chairman Devin Nunes said Wednesday Democrats have prevented a panel investigating Russia's interference in the 2016 election from conducting a single witness interview.

Nunes also announced the panel in the coming days is likely to subpoena the FBI, CIA and National Security Agency for information that would reveal who "unmasked" classified information damaging to President Trump's administration.

Nunes, R-Calif., recused himself from the House Intelligence panel probe into alleged links between Trump and Russia.

But he said the panel has not conducted any interviews in part because Democrats aren't cooperating.

"I don't know how you go for 60 days and have no interviews and every day there is some Democrat on some TV or radio station or newspaper saying they have more than circumstantial evidence, now," that Trump colluded with the Russians, Nunes said.

Carter Page, a former Trump campaign aide, had agreed to speak to the Intelligence panel but his June 6 interview was canceled, Nunes said.

"Democrats are not doing a serious investigation here," Nunes told the Laura Ingraham radio show.

Democrats want to keep the probe alive because it's damaging to Trump, Nunes said.

"If they have more than circumstantial evidence, I haven't seen it," Nunes added. "And it hasn't come from any interviews because they have not done any interviews yet."

Nunes said Democrats "are not accepting the outcome of the election."

A spokesman for the ranking Democrat on the panel, Rep. Adam Schiff, of California, has not yet responded to a request for comment on the Nunes accusation.

Nunes is separately investigating who leaked classified information to the Washington Post and New York Times that revealed classified phone calls between ousted national security adviser Mike Flynn and Russian officials. But, Nunes said the FBI, CIA and NSA are not turning over the culprits, who Nunes said are holdovers from the Obama administration.

"Probably here in the next few days you will be hearing news on this that if they don't cooperate shortly we will have to subpoena them," Nunes said.