The Steele Dossier: A Retrospective (Lawfare).
Quote:
we thought it would be worthwhile to look back at the dossier and to assess, to the extent possible, how the substance of Steele’s reporting holds up over time. In this effort, we considered only information in the public domain from trustworthy and official government sources, including documents released by Special Counsel Robert Mueller’s office in connection with the criminal cases brought against Paul Manafort, the 12 Russian intelligence officers, the Internet Research Agency trolling operation and associated entities, Michael Cohen, Michael Flynn and George Papadopoulos. We also considered the draft statement of offense released by author Jerome Corsi, a memorandum released by House Permanent Select Committee on Intelligence Ranking Member Adam Schiff related to the Carter Page FISA applications and admissions directly from certain speakers.

These materials buttress some of Steele’s reporting, both specifically and thematically. The dossier holds up well over time, and none of it, to our knowledge, has been disproven.
(Emphasis added) Lately there has even been reporting buttressing the most salacious details. Does Robert Mueller Have a Photo of Trump's 'Junk'? (The Root). Yuck. Not since Clinton have I been less interested in seeing the evidence.