Molly Beck:

Six years after Gov. Scott Walker and state Republicans made labor unions’ ability to retain members much more difficult, fewer than half of the state’s 422 school districts have certified unions.

In the latest certification election — held in November and required by Walker’s signature 2011 legislation known as Act 10 — staff and teachers in 199 school districts voted to remain in a bargaining unit, or 47 percent, according to the Wisconsin Employment Relations Commission.

Notes and links: Madison Teachers, Inc. and WEAC.