1. African Americans voting 95%+ for Obama
2. Hispanics, legal or illegal, voting 70%+ for Obama
3. Students recently indoctrinated by the left and unemployed voters 18-27
4. Labor Unions
5. State and Federal employees
The most significant factor providing substantial support for Obama is the breakdown of morality, decency and fairplay.
Wisconsin gangsters proved this on April 16 in their efforts to destroy Sarah. They were vicious, vulgar and vile to a person. There was no civility or decency among them.
This is the character of the Obama presidency and it will increasingly be the character of his reelection campaign.
Here are a couple of others:
One, you forgot liberal single women. There is a large cohort of these, who form a cadre within the liberal wing of the Democratic Party. They have master's degrees, many of them, and overall they're the best-educated piece of the social pie cut up by Pew Trusts' sociology survey in 1999 (and written up in watered-down form in Newsweak). They are hardcore 'Rat and ideological gender-fems. They're married to the 'Rat Party and their leftist icons.
Two, you forgot the media, who voted 90% Rat in the 1972 Nixon landslide. Watergate was in large part their revenge, their getback, their proof-of-thesis that "the American People are TOO STOOPID to hold, much less generate, an opinion." Too stupid, in other words, to be allowed to vote on anything resembling their own values. Hence the kind of filtering, blackguarding, and mass-manipulation that now calls itself "journalism".
And Three, you didn't mention the undermining of the Right by Power Gays, who run no fewer than five PACs dedicated to identifying and destroying family-values politicians at the alderman and county-commissioner and state-representative level, before they ever begin to attract public notice. They direct huge fluxes of San Francisco sodomite dollars into local races across the country, to deprive social conservatives of representation and a voice.