"Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached." - Manuel II Palelologus
Pollsters are weighting all over the place. They are sampling in different ways, too, and there’s just no way for so many to have such divergent results in a pure measurement.
I suspect, strongly, most of all . . . the entire industry is being turned on its head by people who have learned something about the methods and are intentionally acting to disrupt them.
Randomness stops being randomness when the sample self selects.
Just based on Registered Voter numbers, a strong day for McCain dropped off and Obama added a strong day today. Yesterday was a terrible day for Obama, but currently on the three day average I show two strong Obama days and one very weak one. If Obama doesn’t have a great day tomorrow, his numbers on the RV poll will drop. McCain probably won’t change regardless.