The CIA is now providing raw intelligence documents to committee members, according to multiple senators. Senate Intelligence Chairman Richard Burr (R-N.C.) and Majority Whip John Cornyn (R-Texas) visited CIA headquarters on Monday to view the documents underlying the intelligence community’s unclassified assessment that Russia sought to sway the election in favor of Trump.

At Langley, Cornyn said Tuesday, he viewed “four large binders full of classified information that’s been made available to the committee to conduct” its wide-ranging investigation.

House Intelligence Chairman Devin Nunes (R-Calif.) said members of his panel had also made visits to CIA headquarters and that there will be “more trips out there.” He said he was close to reaching an agreement with the intelligence community on whether evidence would be turned over to Congress or continue to be housed within the agencies.