I think a cap and trade system is unviable and would never get out of congress.
I think it is a non-starter politically.
I also think that cap and trade stands diametrically opposed to McCain’s free-market economic vision. He is going to have to make a choice of one or the other, and he has been talking up free markets and less regulation a lot more than cap and trade recently.
Surely he must know that he would never be faced with signing such a bill, which is why he can speak about it so irresponsibly.