Interesting that you would bring up the term, “conflict of interest.” It actually means something. And it means that you are suggesting that Coulter would write a book against illegal immigration even though she is in favor of it. Welcome to the fever-swamp. LOL
When you politically back someone, guess what that means? It means you support what they support. Otherwise it makes zero sense to support them.
What part of that longstanding reality confuses you? Perhaps because admitting the truth of it would be a problem with your own vote for Romney?