I think this is great. This so called "deal" is about to be exposed for what it was, namely, no more than a dodge. McCain never thought in his wildest dreams that his "deal" would be put to the test so quickly. Right now Mr. McCain is shyting his pants because this deal will unravel and he will look like the fool he is. Buh bye Presidential ambitions(. . . .or hello Presdiential ambitions if he actually stands up and does the right thing).
If I were the President, I would nominate Janice Rogers Brown. Despite the fact that she was deemed not to be an "extraordinary circumstance" you can bet that the dems will now say she is. That will only further make the gang of seven look like the fools they are.
I actually have a theory that McCain would love to pull out the nuke card. That is, if he is interested in running for President. It would, in his mind, help him get back in the good graces of the party base.