Wishful thinking? Mostly.
Although I will quite happily admit to selection bias in the news media that I choose to sample, I have recently come across some Kerry endorsements from relatively unexpected sources. As well as being one itself, the excellent Being Daddy site posted a catalogue of some of the more notable, unexpected Kerry endorsements, some from otherwise quite conservative sources.
There are also a lot more voters turning out for registration - I'm assuming this is good for Kerry. Also there are more swing states, including my once-home Colorado and the Kingdom of the Mole Men!
Of course none of this is terribly definitive. Hence I'm still mentally preparing for a second Bush term by asking: how much worse could it get? (Answer: a lot)
And whichever candidate eventually wins, it seems to me almost certain that the result will not be clear-cut. In fact, a tie is not out of the question. If the stakes weren't so high, it would be good entertainment.