Madison Teachers, Inc., via a kind Jeannie Kamholtz email (PDF):

Teachers in Madison recently received an email inviting them to join AAE, and for a very inexpensive fee. For only $15 per month, they say, one can be eligible to apply for a scholarship, receive a publication, and information on professional development. Plus, they claim none of their income will be spent on political action, and a member receives protection via liability insurance. The facts are, that none of what AAE offers is needed.

• MTI negotiates a Collective Bargaining Agreement, and enforces the Collective Bargaining Agreement via grievance and arbitration.
• MTI represents teachers who are challenged by the District.
• The District is responsible by Statute to provide liability insurance and MTI members receive additional liability coverage provided through membership as a result of MTI’s
  affiliation with WEAC & NEA.
• AAE is anti-union. They even tried to stop the Kenosha
  School Board from ratifying the new recently agreed-upon Contracts.

According to the Massachusetts Teachers Association, “The American Association of Educators, is a group backed by some of the deepest pockets in the anti-public education movement (think Koch brothers). The AAE is partnering with the National Right to Work Committee to encourage educators to give up their (Union) membership and join an organization that has affiliates covering just six states. Right-wing foundations provide nearly all of the money to (operate) the AAE Foundation.”
AAE was able to write to each Madison teacher because they obtained teachers’ email addresses via an open records request from the District.