The only thing I hold against McCain...
...is that he's often the one who has to go before the cameras and say there's no money for NASA to be sending people anywhere. (Yes, yes, yes, we all know why.)
I say that facetiously of course, because he's just doing his job and doing it well.
I guess the stories about his temper also give me some pause, but pair him with a level-headed VP (Powell?) who could keep him away from the Big Red Button when he's PO'd and a McCain Presidency might still work OK.
McCain vs Rodham-Clinton in '08?
