Download: PresidentialPrimaries.xls (spreadsheet)

It’s been a little while since I last updated the delegate counts for the Democratic Presidential Primaries, but, even though Mississippi is the only state to have voted since my last article, there’s actually been some movement in my predictions.
I was just a single delegate out on my prediction for Mississippi, with Hillary Clinton doing slightly worse in the overall vote, but slightly better in the delegate battle than predicted. That obviously didn’t change the shape of the race much.
What did have an impact was the Iowa County Conventions, which determined the final delegates for the state. This proved to be a major boost for Barack Obama, who gained many of the delegates formerly pledged to John Edwards, and thereby had a net gain of 10 delegates. Finally, I got some updated delegate counts from the Democrats Abroad.
Looking forward to future races, Hillary Clinton has gained somewhat from my last survey, thanks in part to improved polling in Pennsylvania, and also because Pollster.com dug up a poll from West Virginia that heavily favors Clinton. She also gained 5 superdelegates to Obama’s 3, according to CNN’s count.
All of which adds up to Hillary Clinton getting 24 delegates closer to the nomination while Barack Obama picked up 13 delegates.
That all sounds like pretty good news for Clinton, but what’s interesting is that even with these good numbers, she has actually fallen further behind on my “magic number” analysis. If you’ve been reading the blog for a while, you’ll know that I believe that Clinton will win the nomination if she reaches the convention with the majority of the pledged delegates, while Obama will win the nomination if he gets to the convention with a lead of 150 delegates. If the margin is less than 150 delegates, Clinton could still win by virtue of picking up enough superdelegates (although her chances get increasingly slim as Obama’s lead gets closer to 150).
Because we’re now coming down to the last few states, and Obama’s current lead in the pledged delegate race is 168, Clinton needs to pull off some really big victories in order to make the situation competitive. In fact, Obama now just needs 49% of the delegates across all the remaining states to secure his 150 delegate advantage — the first time his goal has fallen to less than 50%. Clinton, meanwhile would need to secure 66% of the delegates to go to the convention in the lead. That’s pretty much impossible, unless Obama suffers a catastrophic collapse.
In short, Clinton needs to win Pennsylvania by a big margin to keep the race alive. If she doesn’t, I think the remaining superdelegates will start breaking decisively for Obama, as it becomes apparent that he can’t be beaten.