Certainly a very surprising win for Sanders in Michigan. But it was just a morale booster as Clinton still came away with more delegates in the end due to the blowout in Mississippi . I read that the huge discrepancy in polling and results might have come by over sampling democratic voters, not including independents who can vote due to it being an open primary. But Bernie needs to win New York and California to get the nomination and since those primaries are closed (last I remember anyways) I don't see him having much of a chance. But the victory in Michigan will further extend this race and prevent Hillary from pivoting to focus on the general election.

If anything yesterday proved that it was more about demographics than polling results.