The House Select Committee on Benghazi was the first congressional committee to request the emails of Ambassador Chris Stevens, who was killed in the 2012 terror attack that is the subject of the controversial probe.
While seven other committees have investigated aspects of the Benghazi attack, a State Department official told the Washington Examiner Tuesday the agency is "not aware" of any previous requests for Stevens' emails.
The revelation came as Democrats on and off the committee argue the probe has taken a partisan turn in order to focus on Hillary Clinton, the Democratic front-runner for president.
Many critics, including Clinton herself, have pointed to the seven other congressional probes as evidence that questions about Benghazi have been "asked and answered." Those criticisms escalated in late September, after House Majority Leader Kevin McCarthy suggested one of the panel's top accomplishments was bringing down Clinton's poll numbers.
But the State Department did not begin delivering copies of Stevens' emails until Oct. 5, when it gave the select committee 1,371 pages of correspondence. The agency continued producing Stevens' emails over the next two weeks, handing over copies of emails on Oct. 9, Oct. 16 and again Tuesday in a production that brought the total number of pages of emails in the committee's possession to more than 7,000.