Nate Silver @NateSilver538
So Biden's losing ground in 3 of 4, but the one where he's gaining (MN) is arguably the most important of the four. Why? WI has been polled a ton, so no one poll will influence our model that much. The other 3 haven't been polled much, but MN has more electoral votes than NH+NV. — PolitiTweet.org