I don't know about what the Obama campaign is factoring in, but I'm hearing pundits still mentioning the Bradley Effect an awful lot, if not by that name. I would think that the longer the campaign goes on, and it's gone on a long time, the less of a factor it will be in polling, as people disinclined to pull the lever for Obama would have plenty of reasons they could vote for McCain anyway, as lame as those reasons might be. I dunno.