The debate over whether teachers unions help or halt education reform has caused much controversy among educators, parents, and communities as a whole. Critics are up in arms over the alleged hold unions have on education policy—specifically regarding how difficult it is to fire an ineffective tenured teacher. Proponents of the unions argue that they protect teachers' rights, support professionalism, and aren't against reform.
The Thomas B. Fordham Institute took an in-depth look at the role unions play in each state. The study ranks teacher unions in all 50 states and the District of Columbia based on resources and membership, involvement in politics, scope of bargaining, state policies, and perceived influence. Click through the gallery to learn why unions were chosen as having the most or least influence.