Sometimes the bias of a report, especially a statistical report, appears more in what is not said than in what is said. The report states that Obama has 155 more pledged delegates than Clinton BUT (not and) will need 327 super-delegates to clinch the nomination. Clinton's numbers are rather more depressing than Obama's so they are not mentioned at all.

viz: Clinton has 155 fewer pledged delegates than Obama BUT will need 482 super-delegates to clinch the nomination. (Using the same bold print as the report.)

Of course the number of super-delegates required at the moment is a moot point, not because they are unpledged, but because there are a significant number of primaries still to come.