None. I didn't support it in the first place. It set unattainable goals.
The problems in our education system are not going to be solved by some panecea by any politicians. They are deeply rooted cultural and social issues that have contributed to our educational problems and which have created serious educational inequities in our society. You have very large regions of our nation in which minorities and working class people have been denied access to sound education due to out right discrimination to public policies that defund and undermine public education which in turn create a culture in which large segments of our population do not learn to value and support education that has a vast cost to our society.
These sort of grass roots social and cultural issues have to be addressed before any public policy to improve education in this nation has a hope of suceeding and the GOP's call for "greater local control" is just bigotry in sheeps clothing for further attempts to defund public education. Conversely, unless these fundamental grass roots issues are addressed no centralized federal program has a hope of success.
It all comes down to community support. We are becoming a two tiered nation educationaly. We have some sections of the nation that support public education and invests in it heavily and other sections of the nation which do not have community support for public education and do not invest in it to the degree it should and those sections of the nation, due to lack of education, self perpetuate a lack of value for education in those regions. To fix our system we must find a way to convince those in the regions that don't value public education of its huge strategic importance for our nations future and that they/we can end this cycle of ignorance by strongly supporting public education.
The problem is, you have powerful vested interest in those regions who do not want that cycle of ignorance broken.