Keep in mind that McCain lost in 2008 by 1.4 million votes and that Romney lost by fewer than 0.5 million votes in 2012 when reading the following.
Here was Pew in 2012:
- 24 million or 1 in 8 registrations are significantly inaccurate or no longer valid
- Approximately 12.7 million records nationwide appear to be out of date and no longer reflect the voter’s current information
- 12 million records contain an incorrect address
- Approximately 2.75 million people have registrations in more than one state
- More than 1.8 million deceased individuals are listed as voters