VIRAL McCAIN....It's true that David Ignatius, Richard Cohen, and the Washington Post editorial board have become members of the Enough Club recently, all of them penning sad notes about the decline and fall of John McCain ("He has become the sort of politician he once despised," says former McCain groupie Cohen). But a friend emails to say that what's important isn't whether they say it, but whether anyone reads it. And judging from this morning's "Most Viewed Articles" list on the Post home page, people are reading it. And emailing it too. The McCain campaign has evidently decided that it's going to pretend not to care what anyone else thinks, but it looks like there's a chance that this won't work after all. Perhaps my faith in human nature will shortly be restored.