Besieged by state proposals to eviscerate collective bargaining, eliminate teacher tenure, and make it harder to collect dues, teachers' unions are fighting back. Lawsuits supported by local union affiliates have for now blocked anti-union legislation in Alabama and Wisconsin. E-mail "blasts," phone banks, and rallies are also among the tools unions are using to mobilize teachers and public support. Most of the action is occurring at the state level, but by providing state and local affiliates with specialized aid, the National Education Association and the American Federation of Teachers are playing an important role in supporting the efforts. Both unions have raised or plan to raise dues to help pay for efforts to delay, block, or mitigate the impact of such legislation.