Almost two years since the FBI opened a counterintelligence investigation into the Trump campaign, it remains a secret on what basis that probe was launched. The portion of the bureau’s “electronic communication” (EC) memo remains heavily redacted, according to Nunes (R-California).

The FBI informed the House Intelligence Committee last month that the bureau “would refuse to further unredact the EC based on its supposed sensitivity,” according to the letter Nunes sent Wednesday to the Assistant Attorney General Rod Rosenstein and to FBI Director Christopher Wray.

“The document in question is not highly classified, and law enforcement sources have apparently not been shy about leaking to the press information that the Department and Bureau refuse to share with Congress,” Nunes wrote.