"the FBI has failed to cooperate with congressional investigators seeking documents."

Paul Sperry reports at the New York Post

...The Senate Judiciary Committee is also investigating whether the FBI has wrongly relied on the anti-Trump dossier and its author, Christopher Steele — the old spy who was hired by Fusion GPS to build a Russia file on Trump — to aid its ongoing espionage investigation into the Trump campaign and its possible ties to Moscow.

The FBI received a copy of the Democrat-funded dossier in August, during the heat of the campaign, and is said to have contracted in October to pay Steele $50,000 to help corroborate the dirt on Trump — a relationship that “raises substantial questions about the independence” of the bureau in investigating Trump, warned Senate Judiciary Chairman Chuck Grassley, R-Iowa.

Senate investigators are demanding to see records of communications between Fusion GPS and the FBI and the Justice Department, including any contacts with former Attorney General Loretta Lynch, now under congressional investigation for possibly obstructing the Hillary Clinton email probe, and deputy FBI director Andrew McCabe, who is under investigation by the Senate and the Justice inspector general for failing to recuse himself despite financial and political connections to the Clinton campaign through his Democrat activist wife. Senate investigators have singled out McCabe as the FBI official who negotiated with Steele.

Like Fusion GPS, the FBI has failed to cooperate with congressional investigators seeking documents.