Maybe some knowledgable Freeper can answer this question: is it permissible for an organization to participate in political advocacy and maintain 501(c)(3) status?
501(c)3’s can “supposedly” participate in issues advocacy, but may not endorse a specific candidate. But there is a lot of gray area in this and groups like the Conservative Coalition have been taken to court because of their Voter’s Guides, which advocated stands on certain issues, but did not endorse candidates.
Churches are not supposed to endorse candidates, but that law is obviously not applied universally.
That’s my understanding.