No. There wasn't anything to "belief" about it. The document clearly states that a review of history, original intent, and linguistic structure, all support the view that it protects an individual Right.
Of course, if you'd actually read it, you'd know that.
What would keep a future administration from coming up with their own documentation to the contrary would be the history, original intent, and linguistic structure of the Second Amendment and the supporting documentation.
All they'd have to do is simply copy the text from Judge Reinhardt's 70-page opinion in Silveira v. Lockyer.