When people dislike a source they will often dismiss the entirety of the content. If you qualify it like this you can get these people to be more open to the in

When people dislike a source they will often dismiss the entirety of the content. If you qualify it like this you can get these people to be more open to the information because they identify with you as a member of the tribe who dislike the source, and the people who are already partial to the source don't care. Imagine, for example, Breitbart gets exclusive information regarding something unrelated to their politics. It's very easy for a large number of people to reflexively dismiss the article because of the publisher, but if you qualify it by saying that you're left leaning, then people take a second look.