One question - Where is the video footage?
Because, the Auto-Pen is located in a private area. Private areas in the White House, like the Oval Office or additional personal spaces, are under strict video and audio surveillance, and the details surrounding these areas are kept confidential. The Secret Service has access to all of this.
Donald Trump appointed Sean Curran as Director of the US Secret Service. He has access to any video footage, unless it was erased at the direction of Kimberly Cheatle (remember her - resigned over Trump shooting) or Ronald Rowe. Do not expect these two Biden Criminals to reveal any information as to what happened to the video showing use of the Auto Pen.
Curran will have to dig much deeper and be far more devious to discover evidence of who used the Auto Pen. Personally, I very much doubt that Curran is up to the task. Curran is more of a street-thug as opposed to a super gum-shoe Sherlock Holmes. Curran will find nothing. That's my prediction and I'm sticking by it.