Thomas Sowell : Negative Advertising

http://townhall.com/columnists/ThomasSowell/2008/10/14/negative_advertising?page=1

In words, Obama is a uniter instead of a divider. In deeds, he has spent years promoting polarization. That is what a "community organizer" does, creating a sense of grievance, envy and resentment, in order to mobilize political action to get more of the taxpayers' money or to force banks to lend to people they don't consider good risks, as the community organizing group ACORN did.

After Barack Obama moved beyond the role of a community organizer, he promoted the same polarization in his other roles.