Sean and Rush are not leading this one; They are following.
While he is a genuine war hero, I see no evidence that McCain is currently a good or decent man.
It dawned on them too late that McCain had bought endorsements from all of the Republican Party's heavy hitters. If they come out and oppose McCain now, they know that he is the type who carries grudges and will freeze them out or even publicly use the office of the President to criticize them, hurting their audience.
So they are in the extraordinary position of having to sit on their hands and say nothing. ;)
Google McCain Vietnam Memorial and see what comes up.
He, Jon Cary, and Hanoi Jane are the only Americans to have memorials to them in Vietnam.
Why would they erect a memorial to him if he was not "useful" to them when he made those broadcasts?
We have Hanoi Jane and Hanoi McCain.