Constitutions Like Dust

I was reading a review of Isaac Asimov’s STARS LIKE DUST, his second published novel. The reviewer had this tidbit as the central paragraph of the review:

The main flaw with the book is the inclusion of the silly search for a mysterious document from Earth’s past which will utterly revolutionize the Galaxy. The document, in the end, turns out to be the Constitution of the United States. This subplot was added to the book at the insistence of Horace Gold, who was scheduled to serialize ...