"Rasmussen finds that only 39% will not vote for Bush under any circumstances, while 49% won't vote for Kerry under any circumstances."
You're right, what I meant to say is that only 49% would consider voting for Kerry according to the poll, while 56% would consider voting for Bush. As if Ralph nader doesn't further complicate the issue for Kerry, one must remember that Democrats need a higher tide of support than Republicans in order to overcome the electoral disadvantage from their support being spread over fewer states.