In his column today, “McCain Loses His Head,” Will writes that McCain is “behaving like a flustered rookie playing in a league too high,” that he makes comments “furiously, and apparently without even looking around at facts,” that his “childish reflex” demonstrates that he is “disconnected from knowledge and principle,” that “an old antagonism” is responsible for his “fact-free slander,” and whose “smear” is “a harbinger of a McCain presidency.”
Basically, Will describes McCain as an angry, nasty, and dishonest man. And he ends with this:

It is arguable that, because of his inexperience, Obama is not ready for the presidency. It is arguable that McCain, because of his boiling moralism and bottomless reservoir of certitudes, is not suited to the presidency. Unreadiness can be corrected, although perhaps at great cost, by experience. Can a dismaying temperament be fixed?

It’s clear that Will is not voting for McCain. Is he an Obamacon?