(a) $8.7 million is a laughably small amount in presidental election terms. Trump had to tap some single random donor for literally 10 times more, for literally nothing about the election, just that he didn't feel like keeping his mouth closed about some woman he assaulted
(b) I suspect it's big on "GOP" and small on "Hollywood" within that distribution. I'm sure there are some vocal media people who feel like writing a check to Republican causes, but the vast vast majority of the money flows in the other direction there