I don't know if any meaningful conclusions can be drawn from it (fans of Miller products are more likely to vote than fans of A-B products?). It definitely looks like drinkers of craft beers and imports skew towards Democrats. One thing that's not surprising -- people who drink non-craft beers are less likely voters than those who enjoy the good stuff.
I'm not sure who'll come out on top this election, but the guy currently in the White House isn't afraid to be seen downing some brew, as evidenced below. For some reason, I couldn't find one picture of the challenger having even one beer! (heh heh!)