The Republican lawmaker who led the House Intelligence Committee’s investigation into Russian meddling in the 2016 election doesn’t know how the FBI inspector general got his hands on Andrew McCabe’s testimony to the committee.

Rep. Mike Conaway, R-Texas, denied knowing how the fired FBI deputy director’s testimony, given behind closed doors, made its way into an inspector general’s report that’s set to be released soon. McCabe said in a statement to reporters that his testimony showed he would be able to corroborate some of James Comey’s evidence of obstruction of justice by President Trump.

However, that testimony was supposed to remain secret, Conaway said.

“I don't know how the inspector general got access to that testimony in front of our committee. If he did, I'm unaware of it,” he said. “But I don't know how the inspector general would have gotten that unless he got it from McCabe. In terms of his testimony in front of us, I don't know how the IG would have gotten that.”

McCabe was fired by Attorney General Jeff Sessions two days before he was to retire and receive a pension from the government.

Trump celebrated McCabe’s dismissal as a “great day for democracy.”