Polling inertia

Here are two remarkable statistics from my new story over on the homepage.

a. When the general election began in April, Obama averaged a 2.2% lead. His lead in the RCP average of polls today? 2.7%.

That means that hundreds of millions of dollars later, the needle has moved .5%, which is a statistically meaningless number.

b. When the general election began in April, on average, polling found that 92% of voters had made up their mind.

That number today? 92%.