I went to the link and read that with leaners Battleground now has about 9% more Democrats than Republicans in their nightly samples. Most other polling firms are at about that same level of Dems over Republicans. Since the last 10 presedential elections (40 years) have never had a disparity of more than 4% between the parties, I don’t understand why they don’t just set the partisan model at that and go with it. Of course, it would put McCain in the lead.