Just asking...

In a 9/11 endorsement of McCain based on his purportedly tougher (and thus necessarily more effective, or so the unstated premise goes) stance on terrorism, Amir Taheri writes in the New York Post:

McCain believes that America is at war; Obama doesn't. McCain believes the United States can win on the battlefield; Obama doesn't.

Supposing, for the sake of argument, that this assertion is correct, here's my question: what if I agree with McCain on Point A, and with Obama on Point B?