The District’s campaign finance regulators have completed their audit of D.C. Mayor Vincent Gray’s 2010 campaign, but they declined to say Monday when they would release the findings of their two-year investigation to the public.

“The final audit report has been completed,” the D.C. Office of Campaign Finance said in a report it quietly issued earlier this month. “However, at the request of the U.S. Attorney’s Office, additional information may be necessary.”