Public sector unions play a crucial role in **political advocacy** by representing the interests of workers and influencing policy decisions. They mobilize their members to support candidates or issues aligned with labor rights, often engaging in **lobbying** efforts at local, state, and federal levels. Through collective bargaining and strikes, unions can amplify their voices on matters like **wages**, **working conditions**, and **benefits**. This advocacy helps shape legislation, making unions essential players in the political arena, especially in contexts where workers' rights are under threat.