Seeing the most recent presidential "debate" brought MacArthur's aphorism to mind, because if recent actions and non-actions are any indication, such as the pulling of his campaign out of Michigan, we are seeing John McCain beginning to fade into the political twilight.
Another example of this possible pullback is the (blessed!) lack of television campaign ads from the McCain camp in the last few days; considering that Virginia is now also known as a battleground state, you'd think the DC airwaves would be inundated with Republican mendacity, but there's been relative silence.
Thus, I can see why even moderate and conservative political insiders are now whispering that McCain may have effectively given up the campaign ghost. (Via the Guardian's Michael Tomasky, reporting from Washington.)
There's only one thing left --to go to the polls in November to put the nails in the coffin of McCain's presidential bid!