On Saturday afternoon, the (Obama) campaign offered a fuller memo than before with some top-line stats that (if accurate) underscore the historic nature of the ground-game in place. The campaign said it has registered 1,792,261 voters in key battleground states, "nearly double the number of voters the Obama campaign registered in 2008."

The memo also claims that the campaign has made 125,646,479 personal phone calls or visits up to this weekend (that doesn't include things like robocalls and leaving literature on doors). If that number is accurate, then the campaign has contacted roughly one out of every 2.5 people in the entire country since the last election. It also blows away the 50 million voter contacts the Romney campaign has claimed, and that campaign included mailers left at doors.

http://www.huffingtonpost.com/2012/11/03/obama-voter-contact_n_2069289.html?1351981448