POLITICS
07/29/2010 09:07 am ET | Updated May 25, 2011

Obama Takes On Teachers Unions, Insists On Performance Standards

Today, President Obama wades in to a controversy that threatens to split one of the Democratic Party's most generous source of donations and activists, the teacher unions, from the whole. The dispute is about teacher performance, narrowly, and about government's distribution of common goods more generally.

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