Beer and wine drinkers are divided on their presidential picks.

(CNN) – As some Americans recover from hangovers induced by St. Patrick’s Day, a CNN/Opinion Research Corporation Poll released Tuesday suggests a voter’s drinking preferences may also reveal their political preferences.

Beer drinkers appear more likely to vote for Sen. John McCain in November, while those who enjoy wine say they’re more likely to vote Democratic in the fall. Among registered voters who prefer beer to wine, McCain has a 53 percent-46 percent edge over Sen. Hillary Clinton while McCain winds up in a virtual tie with Sen. Barack Obama among beer drinkers. In the head-to-head match-ups with McCain, Sens. Obama and Clinton each win a majority among registered voters who prefer wine to beer.

Overall, 28 percent of all Americans say they prefer beer to wine and 31 percent say they would rather have a glass of wine than a bottle of brew. (The rest claim that they never drink under any circumstances.)

The apparent political differences are really matters of gender and class – men are big beer drinkers while women prefer wine over beer, as do higher-income Americans and college graduates.

The poll of 950 registered voters was conducted by telephone on March 14-16 and has a sampling error of plus or minus 6.5 percentage points.

– CNN’s Keating Holland and Martina Stewart