simple as that. He's raised it before in other forums.
here he is June 21, 2007:
NEW YORK – Democratic presidential candidate John Edwards bemoaned the growing divide between rich and poor Thursday as he returned to the signature theme of “two Americas” from his unsuccessful 2004 White House bid.
“Our tax system has been rewritten by George Bush to favor the wealthy and shift the burden to working families,” Edwards said. “There are still two Americas.”
Edwards told the crowd at the Cooper Union school that people deserve the American dream, the right to succeed on the strength of one's own merits, but that too many Americans don't have the opportunity anymore.
“I do believe it's not enough to just talk about the existence of two Americas,” he said. “You have to talk to about real substantive ideas ... how you can develop one America, where everyone has a chance, a real opportunity to do better.”
Edwards spoke in the same hall where Abraham Lincoln gave his Cooper Union Address of Feb. 27, 1860, and outlined his position on the abolition of slavery. Cooper Union is a Manhattan private college where all students receive full tuition scholarships to study art, architecture or engineering.
Edwards touched on issues of race and discrimination, saying there's a link between poverty and race and that needs to change, voiced his support for affirmative action and said he feels a “personal responsibility” to deal with inequality in America.
“We live in a country where for a very long time we embraced slavery, we went from slavery to segregation, we went from segregation to extraordinary discrimination and even today discrimination is, although sometimes slightly below the surface, still rampant,” he said.
http://www.signonsandiego.com/news/politics/20070621-1924-edwards-twoamericas.html