For one brief – very brief – moment this morning the RCP forecast for the Senate (based on the rolling polling average, no Toss-ups) was at +10 GOP. It then dropped down to +8 and then stabilized at +9. Which is where it’s been for the last couple of days.
In and of itself? Meaningless. The polling average mechanism is merely a data point, and one whose meaning is often argued – particularly now, three weeks before the election. But it is three weeks before the election, and it is possible to argue with a straight face that the GOP has a chance at flipping the Senate. There were damn few people out there even six months ago who thought that such a thing was possible, and even fewer that were even willing to admit to the possibility in public.