“John Carlin is the head of the Justice Department’s National Security Division, and got out of the DOJ in late 2016. He was the former chief of staff to Mueller, when Mueller led the FBI in the 2000s. Carlin was involved in the FBI’s systemic abuse of the FISA surveillance laws, which included spying on the Trump campaign.
Gauhar later played a role in recommending former attorney general Jeff Sessions’ recusal from overseeing Mueller’s probe.
This included omitting information on FBI wiretap abuse to the FISA court, and omitting information when applying to spy on Trump campaign official Carter Page to the FISA court. Carlin was also regularly briefed on and involved with the FBI’s overall investigation into the Trump campaign, called Crossfire Hurricane.”
https://thefederalist.com/2019/03/08/35-key-people-involved-russia-hoax-need-investigated/
“Attorney General Loretta Lynch, her Deputy Sally Yates, the head of the National Security Division John Carlin, Bruce Ohr and other senior DOJ officials, and regrettably, lying attorneys, people that were senior career civil servants violated the law, committed crimes, and covered up crimes by Obama, the DNC and Hillary Clinton – but more than that they tried to frame an incoming president with a false Russian conspiracy that never existed, and they knew it, and they plotted to ruin him as a candidate and then destroy him as a president."
https://skagitrepublicans.com/The99PageFISADocumentDeclassifiedTheAttemptedCoupandCoverup
“…Subpoena former DOJ-NSD (National Security Division) head John Carlin, or haul him in front of a grand jury, and get his testimony about why he hid the abuse from the FISA court in October 2016; why the DOJ-NSD rushed the Carter Page application to beat NSA Director Admiral Mike Rogers to the FISA court; and why Carlin quit immediately thereafter.”“Squeeze this bastard’s nuts in the proverbial legal vice.”
https://theconservativetreehouse.com/2019/04/14/the-corruption-and-influence-of-jessie-k-liu/