Why would cornball change? His takeaway from this years primary is that he can fool the voters by voting the right way at the wrong time (when his vote doesn’t matter). How is the election results of some state wide office going to play into his behavior calculus when his next election (after the general election which he is not going to lose) is six years off?
You're right, Cornball won't change; only some of the uninformed hope he will.
Why do Democrats invariably support Obama, Reid, and Pelosi regardless of what their voters or their financial supporters might think? It’s not because they agree with the leadership on every issue or that the Democrat Party is all of one mind on policy and politics. They fall in line because the Democrats have power and use it to impose discipline on their members.
This is what Conservatives need to do. Seize power within their party and use that power to bend the rest to their will. We are making progress in that direction but it remains to be seen if Conservatives can impose some discipline.