If this isn't McCain's low point...

At a rally today, McCain called on Joe the Plumber to stand up before a crowd of 6,000. Unfortunately, Joe wasn't there, and the crowd was composed almost entirely of high schoolers included about 4,000 bussed in from other districts. I don't know what's sadder: bussing in students for a partisan event, or with less than a week to election day, McCain is holding a rally for non-voters.