The FBI launched an investigation into whether President Donald Trump was "wittingly or unwittingly" acting as a Russian agent after he unceremoniously fired then-FBI Director James Comey in 2017, newly released White House documents show. It later emerged, however, that Trump fired Comey after the FBI director declined to publicly say the president was not a target of the Crossfire Hurricane investigation. "In addition, this investigation will also seek to determine whether President Trump and others yet to be named obstructed and/or conspiracy to obstruct any associated FBI investigation." However, his decision to fire Comey raised questions about possible obstruction of justice, prompting an investigation led by then-Special Counsel Robert Mueller, a former FBI director. He has also accused the FBI of unfairly targeting him and frequently referred to Comey as a "dirty cop."