Nate Silver @NateSilver538
Perhaps more important, Biden could survive a 2016 (3-ish point in battleground states) polling error and probably hold on. Take 3 points off Biden's current polling margin in each state, and he's still ahead in PA/AZ (narrowly) and MI/WI/MN (more comfortably) and FL is a tossup. — PolitiTweet.org