:It is not original research. It is sourced. It is sourced to the Charles Koch Foundation website. I'm very sure you could raise any number of questions which you believe are left unanswered, and unless answered prohibit inclusion of this content, but the content says only what the source says. That's all. The content is not controversial. I don't know for sure but I feel fairly confident that neither the Heritage Foundation nor the Koch Foundation is uncomfortable with this aspect of their relationship. You are raising concerns as if there were two sides to a highly controversial issue. You don't need to. No sources say the Heritage Foundation does not participate in the Koch Associate Program. Let's revisit deleting this content as we get closer to our maximum page length guidelines. Meanwhile, please try to remain calm as a fellow editor tries to write articles that actually convey information to our readers. Thank you.