at random, but because it's pretty much demographically representative. an interesting and smart experiment was done. they had their reporter who was covering president obama on the campaign trail and the reporter covering mitt romney on the trail switch places and start covering the other campaign to see things through the other end of the telescope. the most pointed difference noted by the reporter traveling with obama and then switched to romney, had to do with the crowds. "the crowd is enthusiastic. much like obama's audiences in recent weeks. but they look different. they are noticeably whiter and o older." . republicans and more conservative candidates have had an advantage with older voters. john mccain, even as he was getting clobbered, he won among early voters. the point about whiter voters is