Here you go Jonah — if McCain treats his generals the way he treats Republican senators (I assume you’ve read IBD and numerous other accounts of his temper) it could well be a disaster. Maybe not. Who knows. But you asked for an example that might suggest that he wouldn’t be a good commander-in-chief. And no it is not enough that a president is strong on the war. Most Republican presidents are solid on national security — certainly during my lifetime. I don’t think Ike, Nixon, Ford, Reagan, Bush-41, or Bush-43 would be considered weak on defense. Yet oddly, McCain, unlike Romney, says he would close Guantanamo Bay, which means bringing the detainees into the U.S. and thereby triggering legal procedures that would make it extremely difficult to interrogate them and secure information. This is an irresponsible position, in my view, when one of the characteristics of the enemy that makes them unique was their ability to strike us within our borders on 9/11.