My own concern about his piece is this. He writes: "There are, of course, hypothetical events that could change everything. There could be an attack on Mr Obama himself, but he is protected by the Secret Service.
"There could be an action by al-Qaeda, which would refocus American anxiety on the threat of terror. But al-Qaeda is itself highly political. It would probably not be in its interest to secure the election of Senator John McCain. Al-Qaeda may be unpredictable, but it would be a mistake for it to interfere in American politics, even if it had the capacity to do so."
But that is manifestly untrue, is it not?
Islamic terrorists want war. They want suffering - among others and their own people alike.
They would surely surmise that McCain will give them what they want. Bin Laden himself intervened with what many thought was the effect of keeping President Bush in power in 2004 with that weird tape just before the poll.
I think al-Qaeda would back McCain - that is not an argument for or against America backing him, but it seems to me that the vague assumption that the terrorists would back a lefty is lazy thinking...