On Sept. 26, 2016, the lead New York agent assigned to the case found a large volume of emails – “over 300,000” – on the laptop related to Abedin and Clinton, including a large volume of messages from Clinton’s old BlackBerry account.
The headers indicated that the emails on the laptop included ones sent and/or received by Abedin at her clintonemail.com account, her personal Yahoo! email account as well as a host of Clinton-associated domains including state.gov, clintonfoundation.org, presidentclinton.com and hillaryclinton.com.
The agents had reason to believe that classified information resided on the laptop, since investigators had already established that emails containing classified information were transmitted through multiple email accounts used by Abedin, including her clintonemail.com and Yahoo! accounts. Moreover, the preliminary count of Clinton-related emails found on the laptop in late September 2016 — three months after Comey closed his case — dwarfed the total of some 60,000 originally reported by Clinton.
FBI officials in New York assumed that the bureau’s brass would jump on the discovery, particularly since it included the missing emails from the start of Clinton’s time at State. In fact, the emails dated from the beginning of 2007 and covered the entire period of Clinton’s tenure as secretary and thereafter. The team leading the Clinton investigation, codenamed “Midyear Exam,” had never been able to find Clinton’s emails from her first two months as secretary.
By Oct. 4, the Weiner case agent had finished processing the laptop, and reported that he found at least 675,000 emails potentially relevant to the Midyear case (in fact, the final count was 694,000). “Based on the number of emails, we could have every email that Huma and Hillary ever sent each other,” the agent remarked to colleagues. It appeared this was the mother lode of missing Clinton emails.