"A 33-county strategy trumps a 10-county one. Without the money (or the time) to hit every hamlet in this big state, we focused on the 10 counties with the most recognizable (and reachable) cadre of progressives. We dealt with the other 23 by mail and the Internet. In the past, those 10 accounted for almost 75 percent of the turnout, so we concentrated our efforts there. ... precincts where we knocked on doors voted for me. Those we mailed stuff to (and even more so, those we weren’t able to contact at all) didn’t."
You can read the whole piece HERE