The only group not voting for Obama are hate groups.

From ABC News:

The prospect of a Black president has America's bastions of hate in an uproar. Leaders, including the wizard of the Imperial Klans of America, Ron Edwards, have long warned the white race is under attack and must be defended. Federal authorities say web sites have featured ugly calls to target Senator Barack Obama.

And twice now since August, two sets of self-proclaimed neo-Nazi skinheads have been caught in what officials say were feeble but still troubling plots to assassinate Obama.

"If Obama is elected president, these people see the world as they know it to end," said Morris Dees, co-founder of the Southern Poverty Law Center.