Obama has picked up a net 145 delegate advantage in caucuses and a net delegate advantage of exactly seven delegates in primaries. Seven. And as the article also notes and as I noted above, Obama did much better in caucuses than in nonbinding primaries in the two states that held both, Washington and Nebraska. Obama and many, possibly most, superdelegates believe that he has a moral claim on superdelegate votes by virtue of his lead in pledged delegates. But that lead comes almost entirely from caucuses, which have many fewer participants and are presumably less accurately representative of the mass of Democratic voters than primaries. ~Michael Barone