From an AP story:
"We now have 19 days," Obama said. "We are now 19 days not from the end but from the beginning. The amount of work that is going to be involved for the next president is going to be extraordinary."
But, he said, for anyone getting cocky or giddy, "two words for you: New Hampshire. I've been in these positions before where we were favored and the press starts getting carried away, and we end up getting spanked." Obama won the Iowa caucuses, only to lose to Clinton in New Hampshire in the primary.