[jwalsh07]

The numbers are clear, those 44 and under voted for Obama. Those 45 and over would have elected McCain. There’s no debating that.

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[Joe 6-pack]

There's also no debating that (by the graph you posted) that there are more voters 45 and over (53%) than there are 44 and younger (47%). When you look at overall number of voters within each age group, you can't legitimately say that Gen X/Y put Obama into office. Gen X/Y provided about 50% of Obama's vote, and the Boomers and their elders provided about 50%. That's what YOUR graph shows. Either get a new graph or a new argument if you want to prove your point.