Here's what "Momentum" actually looks like, after being rescued from the Romney camp's Orwellian Gibberish Machine:
Mr. Romney gained ground in just one of the [national tracking] polls.... He lost ground in five others, with President Obama improving his standing instead in those surveys. On average, Mr. Obama gained about one point between the eight polls.
And if you think I'm sarcastic, here, again, is Nate Silver: "What isn’t very likely ... is for one candidate to lose ground in five of six polls if the race is still moving toward him."