The article does well in explaining were the public and Obama disagree on policy and how Clinton manages to somewhat close that gap. For example...
Clinton is likely to be more appealing to Democrats than Obama would be for a number of reasons, one longtime Democratic media consultant said. For starters, Clinton, a centrist Southerner, has more flexibility to campaign in different regions of the country than the current president.[emphasis added]
Additionally, “You can always count on Bill Clinton to not only excite the base but to make a very pointed and rational economic argument. Voters think we got it absolutely right in the 1990s, economically, when he was president,” said the media consultant.
... In the qoute above we see that on economics in particular even Democrats would like a more centrist fiscal agenda, one like we had in the 90's. You know, when the Republicans controlled the purse strings.
But I digress, back the the Roll Call article. In West Virginia, where coal is king, we have our next example...