The acting director of national intelligence is withholding a secret whistleblower complaint from the House intelligence committee because it involves conduct by someone outside the spy agencies and doesn't meet the legal requirement for disclosure to Congress, according to letters obtained by NBC News. But in doing so, acting DNI Joseph Maguire acknowledges he is overruling the intelligence community's independent watchdog, which thinks the complaint should be turned over. The letters, written by Jason Klitenic, the DNI's general counsel, provide Maguire's side of the story in what has quickly become an acrimonious dispute with Rep. Adam Schiff, chairman of the House intelligence committee. On Friday night, Schiff went public about the matter in dramatic fashion, announcing that he had issued a subpoena for a classified whistleblower complaint that he charged was being illegally withheld to shield President Donald Trump. On Tuesday, Schiff said Maguire has refused to comply with the subpoena. Current and former intelligence officials told NBC News they were taken aback by Schiff's public escalation and his suggestion that they acting in bad faith at Trump's behest. Schiff has declined to say whether he is aware of the nature of the complaint. A committee staffer who declined to be named said that Schiff went public because he wanted to send a message that under no circumstances can there be any reprisals against this whistleblower."