(CNN) - You can get dizzy from all the political spinning that's going on.
If you listen to the Barack Obama team, the Pennsylvania results actually showed that he was improving when it comes to winning support from white working class voters. They say he did better with this group in Pennsylvania than he did six weeks ago in Ohio, where Clinton also won by about ten points.
If you listen to the Hillary Clinton team, the results show that Obama simply can't win in major battleground states like Pennsylvania, Ohio, Florida and Michigan. Those are states, they insist, a Democratic presidential candidate desperately would need to win in the general election.
All the spinning is designed to sway those still-undecided super delegates who will be critical in eventually determining the party's nominee. Remember – the party created those superdelegates so they would be able to ensure that the eventual nominee would be more competitive against the Republican nominee. That's why those superdelegates are so important and powerful. The rules make clear that they can choose a candidate who did not win the greatest number of pledged delegates, or the popular vote.
Right now, Clinton advisers also pursuing some of the superdelegates who earlier announced their support for Obama. They suspect the results from Ohio, and now Pennsylvania, are giving some of those Obama supporters buyer's remorse. They are hoping to change their minds. The party rules state that superdelegates can change their minds at any time until the real roll call on the convention floor.
All of which suggests this contest is not over yet – and might not be for some time.
If someone would have predicted back in early January, before the first contests in Iowa and New Hampshire, that the Democrats would still be slugging it out now, they would have been ridiculed. The assumption back then was that the Republicans would be fighting and fighting while the Democrats settled on their candidate relatively quickly. That goes to explain why politics can be so unpredictable and so much fun to cover.