Are you talking about the California Resale Royalties act? That's been on the books longer than I've been alive, and only applies to 5% of whatever a work is sold for OVER $1,000, the artist must be a US citizen and reside in California, and the sale must take place in California, and, the kicker, the selling price must be more than the artist originally sold it for. This is to make sure artists get a cut of appreciation.
Only California has had a resale law on the books, and last May (may have been March) a judge struck it down as a violation of the commerce clause. The constitutionality of any laws requiring a legal owner to give an original artist a cut of a straight sale has been challenged partly because this would indicate owners have entered into a contract they weren't aware of, partly because it means that an owner of a work can't be the true owner as long as someone else has a financial interest in it even if the owner doesn't realize it, and a few other reasons.
As this point, authors whose books are reselling for a couple bucks, or even a quarter as so many do, should have no expectation of getting a cut of it. You get a cut of the first sale.