The biggest fight over the Common Core is within conservative ranks.

On one side, supporting Common Core, is Jeb Bush, Joel Klein, Michelle Rhee, and big business (last February, 72 major corporations put out a full-page ad supporting the Common Core as necessary for the future of our economy).

On the other is Tea Party activists and other small-government conservatives who worry about federal control of education.

Jeb Bush is clearly the heaviest hitter pushing for Common Core.  When ALEC was about to come out against Common Core, Jeb persuaded them to stay neutral.

Now Senator Marco Rubio, one of Jeb’s closest allies, has come out against the Common Core.

We will watch and see how all this shakes out over time.

Clearly, Rubio sees some political advantage in attacking Common Core, even though his patron is its biggest promoter.