It's official! Obama voters are happier than McCain voters!

From the Associated Press:"WASHINGTON (AP) — That smiling guy walking down the street? Odds are he's a Barack Obama backer. The grouchy looking one? Don't ask, and don't necessarily count on him to vote on Tuesday, either.[...]"One expert says the contrasting moods could affect how likely the two candidates' supporters are to vote on Election Day, possibly dampening McCain's turnout while