Surely someone DID know, and DID get permission. Permission comes from ASCAP, upon the payment of royalties. You'll notice their complaint is NOT that the RNC didn't pay royalties. Their complaint is that it was used at all. That's why they have to whine to have their WISHES respected - their RIGHTS have been, or they'd be threatening to sue.
And get on all the talk shows. Bet they are booked for “The View” right now!