
Nate Silver @NateSilver538
22% vs. 15% might not SEEM like a big difference, but it's near an inflection point. With 22% in a multi-candidate race, you can finish 1st/2nd in states and accumulate plenty of delegates. At 15% (where e.g. Warren is now) you're sort of treading water instead. — PolitiTweet.org