SOURCE: NBC-WSJ poll

Enthusiasm is down generally this election as compared to 2008.

An average of several key groups from the NBC/WSJ poll, shows interest in this fall's election down an average of 5.3 points from this time four years ago. That's to be expected, considering the political climate, economy, and no exciting, drawn-out primaries on both sides (like in 2008).

But there are red flags for the Obama campaign, considering Latinos and young voters appear to be among the least enthused so far and down in big numbers from 2008.

And there are things for the Romney campaign to look at, particularly when it comes to white-working class and blue-collar voters. Romney wins both by double-digits in the latest NBC/WSJ poll -- white working class 58-31%, blue collar 48-37% -- but their enthusiasm is low as well.

And how about this question: What if an election were decided by just the parties' bases? Independents are also down – just 65% say they’re 8, 9, or 10, down 11 points from 2008.

To measure enthusiasm, the pollsters asked respondents to say how interested they are in this November’s contest, on a scale of one to 10. Adding up the 8s, 9s, and 10s gives a good measure of who the most likely voters will be this fall.