Former Trump campaign adviser George Papadopoulos is expected to testify to the House lawmakers in late October as part of an investigation into the FBI’s handling of the Hillary Clinton email probe and Russia investigation.

The former Trump adviser, who pleaded guilty to lying to the FBI about his contacts with individuals tied to Russia, is scheduled to speak with lawmakers from the House Judiciary and Oversight committees on Oct. 25, CNN reported Friday. The interview will take place behind closed doors.

Papadopoulos’ tweeted Thursday that he’d be testifying and denied he colluded with any Russians during the 2016 presidential campaign.

"The attempt to discredit my wife and I before my testimony on capitol hill has reached a fever pitch," he tweeted. "Someone is nervous. I think America was smart enough to realize that someone who has never knowingly met a Russian official in their life never could have colluded. Fake news."

Special counsel Robert Mueller charged Papadopoulos with lying to the FBI about his contacts with Maltese professor Joseph Mifsud, who told the former Trump adviser that the Russians had dirt on Hillary Clinton.

Papadopolous told CNN in September that he did not remember sharing those details with anyone on the Trump campaign.

"As far as I remember, I absolutely did not share this information with anyone on the campaign," Papadopoulos said. "I might have, but I have no recollection of doing so. I can't guarantee. All I can say is, my memory is telling me that I never shared it with anyone on the campaign."

Since he was sentenced to two weeks in prison last month, of which he has yet to serve, Papadopoulos has accused Western intelligence agencies of setting him up.

His wife, Simona Mangiante, has been inundated with speculation about whether she’s a spy. Mangiante worked for Mifsud, and met her husband through the professor.

Mangiante has consistently denied she’s a spy and having connections to Russia.

Papadopoulos’ lawyer did not respond to the Washington Examiner’s request for comment.