Organized labor is more than organizing the unorganized and exclusive membership. It is also about rising falling labor standards and practices and seeking approaches that are needed to revive and sustain the labor movement to support workers' unmet needs and interests. Although unions provide an ideal place for coalition building, mobilization, and negotiation, their role and function have been undervalued in HRD's strategic planning, practice, and research to address the myriad of organizational and employment inequities. However, there are spaces where unions and HRD practices intersect to serve the interests of the employers and employees. The purpose of this chapter is to provide a critical exploration of the historical advocacy powers of unions and to envision a way forward in contemporary spaces of relating, learning, changing, and organizing on behalf of others.