Interesting matrix over at the National Journal breaking down the political party lines of certain beer drinkers. The magazine crunched numbers from a Scarborough Research survery of over 200,000 American adults, determining what beer brands Dems and Repubs prefer. According to the breakdown, the most Republican-skewing beers are Coors Light, Busch Light, and Sam Adams. Heineken, Corona, Stella, and MGD drinks tend to slant Democratic. Bud Light, Natty Light, and Dos Equis are right in the middle of the road as the most nonpartisan beer brands, though they also tend to skew under the threshold for voter turnout. 

Sadly, the poll only includes big breweries and excludes data about those who prefer the medium-to-smaller sized (and much more delicious) craft breweries of the United States. Dogfish Head, Yuengling, Flying Dog, Rogue, Smuttynose, etc, etc. And I was just as surprised as you were to see PBR missing the graph entirely. Perhaps that's because it skewed so far left it fell off the graph. Damn hipsters.