With news swirling about Attorney General Jeff Sessions’ contacts with Russian officials before the 2016 election, the top Democrat on the House Intelligence Committee today accused FBI Director James Comey of withholding information about any agency investigation into Russian tampering with the 2016 election.

“In order for us to do our investigation in a thorough and credible way, we’re going to need the FBI to fully cooperate… to fully tell us the length and breadth of any counterintelligence investigations they are conducting,” Rep. Adam Schiff, D-California, told reporters after emerging from a classified meeting with Comey. “At this point the director was not willing to do that.”

Schiff said Comey declined to answer questions about the “scope” and subjects of any counterintelligence investigation.

“He made it very clear there were certain questions that we were asking that he would answer and others that he would not,” he said. “We can’t do a complete job unless the director is willing to discuss anything they are investigating.”