Here is the complaint filed by an intelligence officer about President Trump's interactions with the leader of Ukraine. It was released with a letter from the inspector general for the intelligence community.
The whistleblower says in the complaint that they had learned from several sources that senior White House officials had intervened to "lock down" all records of the call, particularly an official word-for-word transcript. "This set of actions underscored to me that White House officials understood the gravity of what had transpired in the call," the whistleblower wrote in the complaint.
The whistleblower says details of the call were stored in a "stand-alone computer system reserved for codeword-level intelligence information, such as covert action."
The whistleblower adds that officials said it was "'not the first time' under this administration that a presidential transcript was placed into this codeword-level system solely for the purpose of protecting politically sensitive - rather than national security sensitive - information."