10.19.12 8:45 AM ET
Ground Game: Obama Opens Up Big Lead in State Headquarters
As of mid-October, the Obama campaign has 755 offices nationwide for its get-out-the-vote effort—nearly three times as many as the Romney campaign. PLUS: John Avlon and Michael Keller break down what the office edge could mean on election day.
For details on how we assembled the list, read our tumblr.