I don’t think it was THE Bible given by his mother —but his mother’s Bible has a holy past. If you don’t know the story, please read. I apologize for any pop-ups, the are annoying, but do not detract from the wonderful story.
https://metrovoicenews.com/the-amazing-story-of-the-trump-family-bible-and-its-revival-connection/
DJT also is known to have a Bible given to him by his mother in 1955. It’s an RSV, I think with his name or initials.