The Democratic Congressional Campaign Committee (DCCC), which works to elect Democrats to the U.S. House, has completed an investigative report into its own weaknesses and blind spots during last year’s electoral failure.

With the party hoping to recoup years of losses during the upcoming 2018 mid-term elections, the review could be key to reversing Democrats’ dismal fortunes.

There’s just one problem: Few people know what the “autopsy” actually says—and the DCCC wants to keep it that way.

According to Politico, “[a]fter nearly five months, Rep. Sean Patrick Maloney (D-N.Y.) presented his investigative report to lawmakers during a members-only gathering at the Democratic Congressional Campaign Committee headquarters Thursday night.” Only about two dozen lawmakers showed up, the outlet reports, and they were not permitted to leave with copies of the post-mortem.

The document may only be viewed “under the watchful eyes of DCCC staff,” Politico writes.

Furthermore, Politico reports that Maloney’s presentation “didn’t focus on Democratic messaging and instead was heavily skewed towards money—how much the DCCC brings in, from where and how those funds are spent.”

The committee defended its decision to keep the review secret, with a spokeswoman saying, “This analysis is based on strategic information about our organization and meant for internal purposes, not public consumption.”