As I post this, Obama essentially has 3-to-2 odds over McCain. Barring any major gaffes, changes, or scandals by either side, I expect this gap to gradually narrow as the election draws nearer.At the time, Obama was still leading McCain by about 20 points in the prediction markets. This is what it looks like today:
That now means the gap is into the single digits and is approaching the probability of a coin-toss for who will win. Is Obama losing momentum, McCain gaining some, or both?