Democrats on the House Select Committee on Benghazi released the full transcript of the panel's interview with a top aide to Hillary Clinton just one day before the former secretary of state is set to appear before the committee herself.

Citing a desire to combat "misleading Republican leaks," the Democrats published the interview with Cheryl Mills, Clinton's former chief of staff, over the objections of Chairman Trey Gowdy.

Gowdy has refused to release transcripts from any witness interviews, arguing that doing so may discourage future witnesses from being candid with the committee. After the Sept. 3 session with Mills, Gowdy said he planned to treat the transcript as classified.

In the interview, Mills described the chaos that took place shortly after Clinton and her State Department staff learned of the Sept. 11, 2012 raid in Benghazi. She and Clinton were struggling to learn more information about what had happened and what options were on the table, according to the 307-page transcript.

Democrats had published selected excerpts of the Mills testimony earlier this week in an attempt to exonerate Clinton from what they perceived as unfair accusations.

The release of the Mills transcript is sure to deepen the divide between Republicans and Democrats on the committee, who have clashed over how best to handle the probe in the weeks before Clinton's highly anticipated interview.