Democrats are more excited than Republicans to vote in 2012. But this advantage is less impressive when put it context:

Even more striking … is the breakdown of enthusiasm by race and ethnicity … Black Democrats remain much more enthusiastic than other Democrats, but their enthusiasm has plummeted relative to August 2008: 60% are extremely or very enthusiastic about voting in the November 2012 election, down from 92% in August 2008—a 32 percentage point decline. Hispanics have also seen a significant drop in enthusiasm and now are no more enthusiastic about voting than White Democrats.