Carter Page, former foreign policy adviser to the Trump campaign, met privately with the House Intelligence Committee for approximately eight hours on Thursday.

Rep. Mike Conaway, R-Texas, has been leading the House committee’s Russia investigation and said Page responded to all questions, however, he indicated that Page has not completely complied with the committee’s subpoena as they investigate what role the Kremlin played in the 2016 election.

“We’re putting him on notice that he’s got to comply with the subpoena,” Conaway told reporters.

Page also declined to turn over all the documents the committee wanted, but said, “I'm working to help and provide everything that I possibly can.”

Page is of particular interest to various investigations by House and Senate panels and special counsel Robert Mueller as they seek to determine if the Trump campaign colluded with Russia during the 2016 election. Page’s trip to Moscow in July 2016 and previous contacts with Russians in particular are under scrutiny.

George Papadopoulos, another former foreign policy adviser to the Trump campaign, pleaded guilty last month to misleading FBI agents concerning his contacts with Russians during a January interview.

Page acknowledged on Monday on MSNBC that he “could have been” included in emails with Papadopoulos regarding Russia.