POLITICO: Teachers Unions Face Moment Of Truth.

It’s designed to be an impressive show of force: Thousands of unionized teachers plan to rally Monday in cities from New York to San Francisco to “reclaim the promise of public education.” Behind the scenes, however, teachers unions are facing tumultuous times. Long among the wealthiest and most powerful interest groups in American politics, the unions are grappling with financial, legal and public-relations challenges as they fight to retain their clout and build alliances with a public increasingly skeptical of big labor.

And with reason.