Mr Steele also decided to pass on information to both British and American intelligence officials after concluding that such material should not just be in the hands of political opponents of Mr Trump, who had hired his services, but was a matter of national security for both countries.
However, say security sources, Mr Steele became increasingly frustrated that the FBI was failing to take action on the intelligence from others as well as him. He came to believe there was a cover-up, that a cabal within the Bureau blocked a thorough inquiry into Mr Trump, focusing instead on the investigation into Hillary Clinton’s emails.
It is believed that a colleague of Mr Steele in Washington, Glenn Simpson, a former Wall Street Journal reporter who runs the firm Fusion GPS, felt the same way and, at the end also continued with the Trump case without being paid.
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