WASHINGTON — Not long after the early 2017 publication of a notorious dossier about President Trump jolted Washington, an expert in Russian politics told the F.B.I. he had been one of its key sources, drawing on his contacts to deliver information that would make up some of the most salacious and unproven assertions in the document.
New York Times: The FBI pledged to keep a source anonymous. Trump allies aided his unmasking
The FBI logo is seen outside the headquarters building in Washington, DC on July 5, 2016.
