Government workers’ union dues are passed on to state and national affiliates, which spend millions of dollars on political activities and lobbying every year.

While teachers unions hold tremendous power, cracks are starting to appear in their foundations.  As Stephanie Simon reports in Politico, both the National Education Association and the American Federation of Teachers are dealing with new challenges: declining membership, the growing popularity of Right-to-Work laws and a loss of support among the public. As Simon describes...