Please read this piece by my colleague Paul Roderick Gregory in The Hill
The Trump dossier — compiled by Christopher Steele, commissioned by Fusion GPS and paid for by the Clinton campaign and the Democratic National Committee — has tied up U.S. politics for more than two years with its accusation that an elected U.S. president colluded with Russia.
Robert Mueller’s “no collusion” finding destroys the dossier’s multiple charges of a deep Trump-Russia conspiracy, shows that the dossier should not have been used to obtain Foreign Intelligence Surveillance Act (FISA) warrants (if that is the case) and may go down as one of the most elaborate hoaxes in history.
Much of the attempted verification of the dossier focused on pinning down details, such as travel dates of Trump campaign associates, stamps in passports and whether parties to purported meetings could have been present. Such verifiable details are rare and do not yield useful results.