What does "to claw back proceeds from TV rights" mean?

From here:

But Lamberth's decision also keeps alive major risks for Bolton, such as the administration's effort to claw back proceeds from the book, including from any movie and TV rights, and other consequences for disclosing classified information.

My first question is about usage of claw back in this context. Clawing back involves recovering and getting back money the government somehow disbursed.

But since the administration has never funded/spent money on this book in the first place how does clawing back money from proceeds make any sense?

I would also like to understand why the administration may claw back book proceeds due to movie and TV rights. Does it have to do with copyright taxation? Does it imply the book includes quotes from TV and movies?

Thanks!

It will probably be argued by the "administration" that Hilton's book was made possible only by his government position, and that much of the information in it somehow "belongs" to the government. In that sense they would argue that they are "clawing back" what is theirs. Bolton and his lawyers would very likely disagree.

"Movie and TV rights" would refer to the possibility of turning the book into a movie or TV series, not to any quotes it might use.

I'm not familiar with the specific laws involved here but it may be that the government has a right to claim profits that were illegally gained. For example, many states have laws that prevent felons from profiting from the sale of their "story". These laws are contentious since they involve a conflict between the First Amendment and the rights of the victims. Findlaw has a good article discussing the history and issues involved.