Roughly speaking, every 1,000-point drop in the Dow over the past month has correlated with a 2-to-3-percentage-point gain by Obama in the polls. Without attempting to disentangle causation from correlation, or even guess which way the cause-and-effect arrow might be running, it should be interesting to watch that relationship over the next few volatile weeks.
UPDATE 4:15 PM: And then there was a wild 900-plus point rally. Who should be worried about that?
