Friday, October 31, 2008

Bowers calls it for Obama already

Why so bold? Early voting:
Here is why this is over:

  1. In order to win the election, all Barack Obama needs are the Kerry states, plus Colorado, Iowa and New Mexico. That adds up to 273 electoral votes.

  2. Obama leads by at least 9.5% in every Kerry state and Iowa, according to both Pollster.com and Real Clear Politics. Also, my own numbers concur with those calculations.

  3. This means that in order to win the election, all Obama has to do is hold onto states where he leads by 9.5% or more, and win both Colorado and New Mexico. These are both states where more than half of all voters will cast their ballots before Election Day (source). In other words, the elections in Colorado and New Mexico are already almost over, not just beginning. And these are the only two states he needs to win, other than the ones where he leads by double-digits.

  4. In Colorado, about 60% of the vote is already in. According to the crosstabs of the three most recent polls in the state, Obama leads early voters by 15% (Rasmussen), 18% (Marist) and 17% (PPP). Even in the best case scenario for McCain, where he only trails by 15% among those who have already voted and only 55% of the vote is in, he still needs to win the remaining voters by 18.4% in order to eek out the state. And that is the best-case scenario. The worst case scenario for McCain--65% of the vote in and an 18% deficit among early voters--is that he needs to win the remaining voters by 33.5% in order to win the election.

  5. That leaves New Mexico. In 2004, New Mexico had an even higher rate of early voting than Colorado (50.6% to 47.9%). Further, all polling aggregation sites show Obama's lead to be larger in New Mexico than in Colorado. While the recent dearth of polling in the Land of Enchantment means there are no early voting crosstabs, those two facts suggest the situation is even worse for McCain in New Mexico than in Colorado. At the very least, it isn't much better. Update: A new poll from PPP in New Mexico indicates that 56% of the vote is in, and Obama leads 64%-36% among those voters. If that is accurate, McCain would have to win the remaining voters by 35.7%.

So, unless Obama one of the following occurs:

  • Obama blows a double-digit lead in either Iowa or one Kerry state
  • McCain wins the minority of remaining voters in either Colorado or New Mexico by at least 20%
Then the election is over and Obama has won no matter what happens anywhere else.

I am not quite so sanguine as Bowers: Something could go awry in Pennsylvania or some other Kerry state, there could be some sort of game-changing external event, etc. But the fact of early voting does pound a few more nails into McCain's electoral coffin.

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