Trump's election, charged rhetoric, and reactionary policies have produced an outpouring of protests and opposition. Amid the fear and anger there has been a forceful push for action and change. Much of the response has necessarily been defensive in nature, aimed at protecting the latest target of Trump's attacks. But there is also a broader dissatisfaction with the pro-business orientation of the two major political parties that reflects a deep desire for a more equitable society. This tentative backlask against gross inequality provides an opportunity for the labor movement while raising a fundamental challenge: How do we build movements that are more effective in beating back Trump's agenda, and that develop the political vehicles -- both on and off the job -- to represent, unite and build power for working people? What are the roles of worker organizations and the labor movement in this process?