I don't actually have anything interesting to say about this, but a couple people have brought it up to me.  Actually seems pretty straightforward:

Republican men nationwide may have experienced a drop in testosterone levels the night Barack Obama was elected president, according to the results of a small study that found another link between testosterone and men's moods.

By taking multiple saliva samples from 183 young men and women on election night, researchers found that the testosterone levels of men who voted for John McCain or Robert Barr dropped sharply 40 minutes after Obama was announced the winner.

The testosterone levels of men who voted for Obama stayed the same throughout the evening...

The lowered testosterone levels the study found in Republican men after the election matches what other researchers have found when men are involved in face-to-face competition. Scientists have shown that more often than not in showdowns such as sports competitions or physical fights the loser ends up with a drop in testosterone.