Since the 1960s, teachers unions across the United States have used strikes or the threat of strikes to influence the terms of collective bargaining agreements with local school districts. In the spring of 2018, teachers in West Virginia, Oklahoma, Arizona, and elsewhere changed their tack, staging walkouts designed to secure salary hikes and increased school funding from state legislatures. Will teachers unions increasingly shift their focus away from local districts and toward state policymakers? And how will unions adapt, now that the U.S. Supreme Court's "Janus v. AFSCME" decision has banned agency fees for teachers who decline to join? Jeffrey R. Henig and Melissa Arnold Lyon of Columbia University's Teachers College discuss possible union comeback strategies post-"Janus," while Sarah F. Anzia of the University of California, Berkeley, foresees geographical differences in union tactics. [For Henig and Lyon's piece, "Adaptation Could Bring New Strength," see EJ1199788. For Anzia's piece, "Statewide Strikes are a Shot across the Bow," see EJ1199914.]