U.S. spy agencies assessed that Russian intelligence services were aware of British ex-spy Christopher Steele’s investigation into then-candidate Donald Trump during the summer of 2016, and at least one of his subsources supported Hillary Clinton, declassified footnotes show.

The revelations made their public debut in five pages of declassified portions from DOJ Inspector General Michael Horowitz’s report on the FBI’s Russia investigation, obtained by the Washington Examiner. The footnotes provide further evidence that Moscow was aware of what Steele was up to and may have been attempting to compromise his dossier with Russian disinformation.