John Samples has a piece up today calling John McCain a “diva” for his weak-on-defense answer (he’s not) re: Kerry. I’ve never been a McCainiac–I think he’s all wrong on campaign-finance reform, of course–but he was terrific during the Iraq qar, and on the terror war. And, fact is, when he’s on, he’s on, and so you always want him on your side. Couldn’t blame Kerry if he wanted him for SecDef. And, it would be, I might add, hugely damaging if Kerry pulled off a pre-election McCain defection like that. My question: Is it enough of a threat that W. should be publicly promising something?