Because she only ever needed about 30% of the vote in the primaries to win. Unpledged delegates made that the case, and they all fell in line with Hillary. Then heavily advertising the disadvantage Sanders is at in delegates to depress the Sanders vote.
My state is a good example of this - Sanders got over half the votes and Hillary got 35%, which is why Hillary only got one more delegate than he did in my state.
Because she only ever needed about 30% of the vote in the primaries to win. Unpledged delegates made that the case, and they all fell in line with Hillary. Then heavily advertising the disadvantage Sanders is at in delegates to depress the Sanders vote.
My state is a good example of this - Sanders got over half the votes and Hillary got 35%, which is why Hillary only got one more delegate than he did in my state.