Increasing numbers of Americans want charitable organizations to step into the public policy arena and lead the causes they care about. Philanthropists have a responsibility not only to protect their reputation, but also to achieve their mission. Too often, concern with preserving the former can kill the will to advance the latter. Despite an understandable reluctance to step anywhere near today’s pernicious political landscape, philanthropy has a once-in-a-generation opportunity to engage powerfully in more – not less – advocacy.