In many ways, the 2012 presidential election is a referendum on a number: the nation's unemployment rate of 7.9 percent. Reporters in Oklahoma City (unemployment around 5 percent) and San Bernardino, Calif., (unemployment pushing 12 percent) look behind the numbers.

Voter turnout may be lower than expected on the East Coast, but results could stay the same.

Election officials in storm-stricken counties scramble ahead of voting day.