Letters to the Editor
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Endorsement will influence superdelegates
My guess is that Richards is the first we'll see of a series of Obama endorsements before PA.
Responsible superdelegates are making the same calculations about the possibility of Clinton winning as us plebes, and coming to the same conclusions.
The logic is starting to reverse: rather than wait and see if Clinton pulls it off, the concern now is that she will cause too much damage to Obama. It's better to try to mitigate that damage by decreasing the margins of her victories in PA, and add to Obama's margins elsewhere. More importantly, it's time to decrease the importance of the competition by putting Obama closer to the top.
Richards is the first superdelegate to play the supposed superdelegate role.

