Teacher's unions have too much power

No Teacher Left Behind

If the teachers unions won't voluntarily give up their power, then it has to be taken away from them--through new laws that, among other things, drastically limit (or prohibit) collective bargaining in public education, link teachers' pay to their performance, make it easy to get rid of mediocre teachers, give administrators control over the assignment of teachers to schools and classrooms, and prohibit unions from spending a member's dues on political activities unless that member gives explicit prior consent.

This article didn't sit well with the unions.