538: Bernie Sanders Doesn’t Need Momentum — He Needs To Win These States
Here are the latest numbers. I must emphasize that these are not predictions of what will happen in these states. Instead, theyre estimates of what would happen if the national vote were evenly divided between Sanders and Clinton (which it isnt yet). In other words, they tell us whether each state is Sanders-leaning or Clinton-leaning relative to the national average. Sanders will need to beat these targets to have a shot at the nomination, especially since a tie would probably go to Clinton because of superdelegates. As you can see, however, Sanders is currently running behind these benchmarks in states with recent polling.
Sanders trails in polls of Oklahoma (narrowly) and Tennessee (badly), however, when he probably needs to win those states too. Meanwhile, hes losing states such as Georgia by a wider margin than our benchmarks suggest he can afford. The Democrats delegate allocation is quite proportional, so these margins matter; underperforming his targets on Super Tuesday would mean that Sanders would have to make up more ground later on with less time left on the clock.
But the March 15 states dont look great for Sanders either: He trails Clinton in Ohio when thats a state where he should be able to fight her to a draw. Theres less polling for the contests beyond March 15, but the states where we have recent numbers, such as Pennsylvania, are fairly discouraging for Sanders also.
So Sanders is doomed? If he doesnt beat these polls, then probably yes Sanders is not going to win the Democratic nomination if hes losing Ohio by 13 percentage points. And if Clinton has a really good night on Super Tuesday by winning Massachusetts, for instance that would take almost all the suspense out of the race.
http://fivethirtyeight.com/features/bernie-sanders-doesnt-need-momentum-he-needs-to-win-these-states/