When the primary started?

The object is still to end with the most delegates, specifically at least 2,024 of them. Many of them are superdelegates. Both candidates need them to make the 2,024 mark. All this big state/small state stuff, FL and MI, and everything that falls under the rubric of "electability" is relevant for the superdelegate vote. It's really very simple if you read a newspaper once in awhile.