How foundations can invest in promoting good public policy and advocacy by nonprofits: https://nonprofitquarterly.org/2017/07/20/investing-policy-advocacy-foundation-shares-lessons-learned/?utm_source=cerkl&utm_medium=email&utm_campaign=newsletter-07212017&cerkl_id=330241&cerkl_ue=eN9dYaMI0z7TUlsmwx55Reh7i9jd9N8fHTP5f%2Bt6sDg%3D