Obama isn’t really running 50-state campaign

That’s straight from a top campaign horse’s mouth, as Obama campaign manager David Plouffe explains the 18-state strategy when being asked about national polling numbers:

“All we care about is these 18 states,” he said. He repeated, with emphasis, that the campaign does not care about national polling. Instead, the campaign's own identification, registration and canvassing efforts provide the data he uses to determine where to invest money and resources.

There you heard it.