I think that you underestimate the number of libertarians in the Tea Party movement. Yeah, they claim to support the constitution, but it is their interpretation of the constitution, not ours.
I explained what is going on in education in WA state, I did the same on the WA state board on FreeRepublic and I could not get a single response from anyone who was opposed to the unionization of the potential drop outs. They simply don’t care whether education standards are lowered. It’s not important to them. Some of them actually supported it because they think that increased union membership is a good thing.