I don’t know, but it seems to me like if the already-low wages for teachers in the US are being pushed down further, kids educations will obviously suffer.  It’s a difficult position for a school board to be in, because the state government is reducing budgets, and the teachers union is (typically) pushing to maintain or increase wages.

It does seem wrong to force dissolution of a union by government mandate.  I’m not a fan of most unions, myself, but this seems too heavy-handed.